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Journal articles on the topic 'PP chian'

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Published: 18 April 2022

Last updated: 30 July 2025

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1

Tannenbaum, Nicola. "The Village in Perspective: Community and Locality in Rural Thailand. Edited by Philip Hirsch. Chian Mai: Social Research Institute, Chiang Mai University. 1993. vii, 96 pp." Journal of Asian Studies 53, no. 2 (1994): 631–32. http://dx.doi.org/10.2307/2059926.

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2

De Sarkar, Mousumi, Nishant Chandel, Shib Shankar Banerjee, et al. "Development of high melt strength polypropylene and its application in thermoplastic elastomeric composition." Journal of Elastomers & Plastics 54, no. 3 (2021): 429–56. http://dx.doi.org/10.1177/00952443211051010.

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High melt strength polypropylene (HMS-PP) with a long-chain branched structure is a modified form of polypropylene (PP) which has basic properties of regular PP but with superior melt drawability. This paper reports on the development of gel-free HMS-PP from a linear isotactic PP through the introduction of long-chain branching on its backbone via a reactive extrusion process, using dicetyl-peroxydicarbonate (PODIC) alone or in combination with a coagent. The melt strength and the mechanical properties such as impact and flexural strength of PP showed improvements with the modification with PO

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3

Zhang, Shuang, Bao Dong Zhu, Qing Ming Meng, Na Li, and Jian Wang. "Grafting Polypropylene under Ultrasonic in Water Suspension System." Advanced Materials Research 1095 (March 2015): 746–50. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.746.

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Polypropylene (PP) was grafted with styrene (ST), maleic anhydride (MAH) and butyl acrylate (BA) by free radical thermal initiation leading to (PP-g-PSMB) in water suspension system. The effects of ultrasonic frequency and time were investigated on PP grafting ratio in swelling stage. The structure of grafted product was analyzed by FTIR and melt flow rate (MFR), die swell ratio (Dr) and water contact angles of the grafted product were tested. The results show that the grafting ratio of PP can be improved in a short time by using ultrasonic significantly. The grafting ratio of PP increased wit

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Vikram, Singh Kumawat, Bhatt Jayesh, Sharma Daksha, Rathore Renu, C. Ameta Suresh, and Ameta Rakshit. "Photodegradation of polypropylene using CaO nanoparticles as a catalyst." Journal of Indian Chemical Society Vol. 97, Jun 2020 (2020): 879–85. https://doi.org/10.5281/zenodo.5658109.

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Department of Chemistry, PAHER University, Udaipur-313 003, Rajasthan, India Department of Chemistry, VBRI, Udaipur-313 002, Rajasthan, India Department of Chemistry, B. N. University, Udaipur-313 001, Rajasthan, India Department of Chemistry, J.R.N. Rajsathan Vidyapeeth (Deemed to be University), Udaipur-313 001, Rajasthan India <em>E-mail:</em> vikramkumawat123@gmail.com, rakshit_ameta@yahoo.in <em>Manuscript received online 30 January 2020, revised and accepted 07 May 2020</em> The photodegradation of polypropylene has been studied using calcium oxide nanoparticles as a catalyst under halog

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Fu, Xiangming, Xijun Liu, Chunyu Zhang, Heng Liu, Yanming Hu, and Xuequan Zhang. "Synthesis of Propylene-co-Styrenic Monomer Copolymers via Arylation of Chlorinated PP and Their Compatibilization for PP/PS Blend." Polymers 11, no. 1 (2019): 157. http://dx.doi.org/10.3390/polym11010157.

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A series of propylene-co-styrenic monomer copolymers were synthesized using the Friedel–Crafts alkylation reaction between chlorinated PP and substituted benzene, and the effects of these copolymers on a PP/PS (80/20) blend were investigated by using the impact test, morphology observation, thermo- and dynamic mechanical analysis, and rheology measurements. The results showed that the compatibilization efficiency varied as the variation of the substitute on the benzene ring of the styrenic monomer unit was incorporated in the PP chain in an order of methyl > ethyl > methoxyl. The copolym

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Zh. S. Raimbekov, B. U. Syzdykbayeva, Zh. B. Rakhmetulina, and А. A. Rakhmetulina. "DEVELOPMENT OF DOMESTIC INFRASTRUCTURE FOR THE COLD SUPPLY CHAIN OF PERISHABLE PRODUCTS." Bulletin of Toraighyrov University. Economics series, no. 2.2024 (June 28, 2024): 308–19. http://dx.doi.org/10.48081/svep3076.

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The purpose of the work is to analyze the cold supply chain of perishable products (PP) of the agro-industrial complex (AIC) of the country, to assess the volume of production of SPP that requires compliance with the temperature regime; to analyze the transportation of perishable goods of the Republic of Kazakhstan by all modes of transport, to analyze the load capacity of refrigerated vehicles in the country, to identify problems of storage and transportation infrastructure in the supply chains of the PP, to determine the directions of their development, to develop recommendations for improvi

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Bhattacharya, Abanti. "India–China Relations: Putting the Record Straight." India Quarterly: A Journal of International Affairs 75, no. 2 (2019): 262–68. http://dx.doi.org/10.1177/0974928419841801.

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Tansen Sen, India, China, and the World: A Connected History (New Delhi: Oxford University Press, 2018). Pp. 541, ₹770 (Paperback), ISBN 0-19-948554-2. Berenice Guyot-Rechard, Shadow States: India, China and the Himalayas, 1910–1962 (Delhi: Cambridge University Press, 2017). Pp. 321, ₹550 (Paperback), ISBN 978-1-108-40131-9. Bertil Lintner, China’s India War: Collision Course on the Roof of the World (New Delhi: Oxford University Press, 2018). Pp. 320, ₹675 (Hardcover), ISBN 0-19-947555-5.

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Fahmi, Muhammad, Amirul Karman, M. Janib Achmad, Imran Taeran, Nurhalis Wahidin, and Muh Aris. "Development of Cold Chain Facilities Tiley Fishery Port Morotai Island District." Agrikan Jurnal Agribisnis Perikanan 17, no. 2 (2024): 191–98. https://doi.org/10.52046/agrikan.v17i2.2241.

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The research was carried out at PP Tiley, Morotai Island Regency, North Maluku Province, from April to May 2024. Field data was collected for 1 week, namely on 10 - 17 May 2024. Tiley fishing port was chosen as the research location because this location was wrong. a fishing port which is often used as a fishing base and landing place for caught fish in Morotai Island Regency. This research uses the case method. The research results show that the utilization level of the ice factory is not yet optimal, while the utilization rate of ABF and cold storage has exceeded the optimal limit. The strat

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9

Nguyen, Thu Anh, Hui Ming Lim, Kenji Kinashi, et al. "Spin Trapping Analysis of Radical Intermediates on the Thermo-Oxidative Degradation of Polypropylene." Polymers 15, no. 1 (2022): 200. http://dx.doi.org/10.3390/polym15010200.

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The purpose of this study is to investigate the thermo-oxidative degradation behavior of polypropylene (PP) by comparing three types of pristine PP granules (consisting of homopolymer, random copolymer, and block copolymer) with their corresponding oxidized analogues. These analogues were intensely oxidized under oxygen at 90 °C for 1000 h by using the electron spin resonance (ESR) spin trapping method that can detect short-lived radical intermediates during the degradation. The degrees of oxidation could be evaluated by chemiluminescence (CL) intensity, which was related to the concentration

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10

Klotz, E. L., and U. Storb. "Somatic hypermutation of a lambda 2 transgene under the control of the lambda enhancer or the heavy chain intron enhancer." Journal of Immunology 157, no. 10 (1996): 4458–63. http://dx.doi.org/10.4049/jimmunol.157.10.4458.

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Abstract Previous experiments have suggested an important role for the Ig enhancers and transcription in targeting somatic hypermutation. To determine whether the requirement of the enhancers is Ig chain specific, we analyzed two lambda 2 light chain transgenes under the control of different enhancers, either the lambda 2-4 enhancer or the heavy chain intron enhancer. The transgenes were amplified and cloned from B220+PNAhigh B cells from either Peyer's patches (PP) or SRBC-immunized spleen. The lambda 2 transgene under the control of the lambda 2-4 enhancer underwent mutation in both the PP a

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Hirai, Sho, Patchiya Phanthong, Hikaru Okubo, and Shigeru Yao. "Enhancement of the Surface Properties on Polypropylene Film Using Side-Chain Crystalline Block Copolymers." Polymers 12, no. 11 (2020): 2736. http://dx.doi.org/10.3390/polym12112736.

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The consumption of polypropylene (PP) has significantly increased over that of other materials because of its light weight, easy molding, and high mechanical strength. However, the applications of PP are limited, owing to the lack of surface properties, especially with respect to adhesive properties and hydrophilicity. In this study, we developed a surface modification method for enhancing the adhesive properties and hydrophilicity on the PP surface using a side-chain crystalline block copolymer (SCCBC). This method was simple and involved the dipping of a PP film in a diluted SCCBC solution.

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Weingart, Nick, Daniel Raps, Mingfu Lu, Lukas Endner, and Volker Altstädt. "Comparison of the Foamability of Linear and Long-Chain Branched Polypropylene—The Legend of Strain-Hardening as a Requirement for Good Foamability." Polymers 12, no. 3 (2020): 725. http://dx.doi.org/10.3390/polym12030725.

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Polypropylene (PP) is an outstanding material for polymeric foams due to its favorable mechanical and chemical properties. However, its low melt strength and fast crystallization result in unfavorable foaming properties. Long-chain branching of PP is regarded as a game changer in foaming due to the introduction of strain hardening, which stabilizes the foam morphology. In this work, a thorough characterization with respect to rheology and crystallization characteristics of a linear PP, a PP/PE-block co-polymer, and a long-chain branched PP are conducted. Using these results, the processing win

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13

Godbole, Avinash. "Iron Fist for the New Era: How Xi Rules China." India Quarterly: A Journal of International Affairs 74, no. 3 (2018): 343–46. http://dx.doi.org/10.1177/0974928418785474.

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Jayadeva Ranade, Cadres of Tibet. New Delhi: KW Publishers, 2018, pp. 218, ₹1120. ISBN: 9789386288929. Jayadeva Ranade, Xi Jinping’s China. New Delhi: KW Publishers, 2018, pp. 406, ₹1400. ISBN: 9789386288905.

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Boiko Yu.M., Marikhin V.A., Moskalyuk O.A., and Myasnikova L.P. "Specificity of statistics of elastic and strain-strengthproperties of high-strength polypropylene fibers." Physics of the Solid State 64, no. 1 (2022): 82. http://dx.doi.org/10.21883/pss.2022.01.52493.199.

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Regularities of statistical distributions of a complex of mechanicalproperties, including the modulus of elasticity (E), strength(sigma) and strain at break (εb), high-strength industrial oriented polypropylene (PP) fibers have been analyzed using the Weibull and Gauss models based on a large array of measurements (50 identical samples in each series). The values of the statistical Weibull modulus (m) --- a parameter characterizing the scatter of the measured values of the data arrays of E, sigma and εb have been estimated for the PP samples of two types: single fibers (monofilaments) and mult

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15

Бойко, Ю. М., В. А. Марихин, О. А. Москалюк та Л. П. Мясникова. "Специфика статистики упругих и деформационно-прочностных свойств высокопрочных волокон полипропилена". Физика твердого тела 64, № 1 (2022): 85. http://dx.doi.org/10.21883/ftt.2022.01.51836.199.

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Regularities of statistical distributions of a complex of mechanical properties, including the module of elasticity (E), strength () and strain at break (b), high-strength industrial oriented polypropylene (PP) fibers have been analyzed using the Weibull and Gauss models based on large a wide array of measurements (50 identical samples in each series). The values of the statistical Weibull modulus (m) - a parameter characterizing the scatter of the measured values of the data arrays of E,  and b – have been estimated for the PP samples of two types: single fibers (monofilaments) and multif

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16

Xiao, Meng, Mengdie Zhang, Boxue Du, Zhaoyu Ran, Haoliang Liu, and Yawei Qin. "Breakdown strength improvement of polypropylene by introducing long-chain branched structures for film capacitors." Journal of Physics D: Applied Physics 55, no. 24 (2022): 245501. http://dx.doi.org/10.1088/1361-6463/ac5c1e.

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Abstract The breakdown strength of polypropylene (PP) for film capacitors drops sharply in a high-temperature environment, which would lead to capacitor insulation failure frequently. This paper proposes a method to improve the breakdown strength of PP at high temperatures by introducing long-chain branches (LCBs). Different from traditional linear PP, the results show that LCBs can increase the number of spherulites and refine the grains due to heterogeneous nucleation, resulting in a reduction in weak areas in the films and an increase in trap densities and energy levels in long-chain branch

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17

Girona, Ramon. "Obra literaria reunida. Le chien andalou et autres textes poétiques." Buñueliana 3, no. 1 (2024): 139–52. http://dx.doi.org/10.26754/ojs_bunuel/bunuel.2024110672.

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Reseña de: Buñuel, L., Obra literaria reunida, Madrid, Cátedra, col. “Letras Hispánicas”, ed. de Jordi Xifra, 2022, 552 pp. Y: Buñuel, L., Le chien andalou et autres textes poétiques, París, Gallimard, col. “Poésies”, ed. de Jordi Xifra, 2023, 416 pp.

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18

Momota, Yoji, Taketo Uehara та Atsuhiko Kushida. "PCR-based cloning of two Ξ-1,4-endoglucanases from the root-lesion nematode Pratylenchus penetrans". Nematology 3, № 4 (2001): 335–41. http://dx.doi.org/10.1163/156854101317020259.

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AbstractPolymerase chain reaction (PCR) with degenerate primers was performed on cDNA from Pratylenchus penetrans to amplify a conserved region in β-1,4-endoglucanase genes. Two distinct genomic DNA fragments that encoded partial β-1,4-endoglucanase sequences were isolated. Two corresponding full-length cDNAs, designated Pp-eng-1 and Pp-eng-2, were obtained by 3′ and 5′ rapid amplification of cDNA ends. Pp-eng-1 and Pp-eng-2 consisted of 1521 nucleotides encoding 455 amino acids and 1179 nucleotides encoding 328 amino acids, respectively. The two cloned genes encoded family 5 β-1,4-endoglucana

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Xiao, Meng, Mengdie Zhang, Haoliang Liu, Boxue Du, and Yawei Qin. "Dielectric Property and Breakdown Strength Performance of Long-Chain Branched Polypropylene for Metallized Film Capacitors." Materials 15, no. 9 (2022): 3071. http://dx.doi.org/10.3390/ma15093071.

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At high temperatures, the insulation performance of polypropylene (PP) decreases, making it challenging to meet the application requirements of metallized film capacitors. In this paper, the dielectric performance of PP is improved by long-chain branching modification and adding different kinds of nucleating agents. The added nucleating agents are organic phosphate nucleating agent (NA-21), sorbitol nucleating agent (DMDBS), rare earth nucleating agent (WBG-Ⅱ) and acylamino nucleating agent (TMB-5). The results show that the long-chain branches promote heterogeneous nucleation and inhibit the

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20

Rais, Djunaidi, Kusdi Hi. Iksan, and M. Janib Achmad. "Evaluation of Capacity and Function of Cold Chain Facilities at Fishing Port of Integrated Marine Fisheries Center (PP SKPT) Daeo, Morotai Island Regency." Agrikan Jurnal Agribisnis Perikanan 17, no. 2 (2024): 76–84. https://doi.org/10.52046/agrikan.v17i2.2201.

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The aim of this research is to evaluate the capacity, function and level of utilization of cold chain facilities (Ice Factory, ABF and Cold Storage), and determine the level of satisfaction with cold chain facility services. The research was carried out at the Fisheries Port of Integrated Marine Fisheries Center (PP SKPT) Daeo, Morotai Island Regency. The research was conducted from April – May 2024. This research uses a case study method. Facilites of cold chain at PP SKPT Daeo consists of 1 unit of Ice Factory with installed capacity of 10 tons, production capacity of 10 tons/day, actual dem

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21

Iiba, K., W. Takarada, and T. Kikutani. "Effect of Introducing Long Chain Branching on Fiber Diameter and Fiber Diameter Distribution in Melt Blowing Process of Polypropylene." International Polymer Processing 36, no. 4 (2021): 403–9. http://dx.doi.org/10.1515/ipp-2020-3922.

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Abstract In the melt blowing process, the molten polymers extruded from nozzles are elongated by high-velocity and high-temperature air flow. In this study, with the aim of stabilizing the melt blowing process for producing nonwoven webs with fine diameter fibers, the effect of the control of polymer rheology by the introduction of either low melt flow rate (MFR) polypropylene (PP) or long chain branched PP (LCB-PP) to regular high MFR PP was investigated. Introduction of low MFR PP into regular PP increased shear viscosity and fibers of larger diameter were produced in the melt blowing proces

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Churilova, T. Y., O. V. Kryvenko, V. V. Suslin, T. V. Efimova, and N. A. Moiseeva. "Primary production of the Black Sea: spectral approach." Marine Biological Journal 1, no. 3 (2016): 50–53. http://dx.doi.org/10.21072/mbj.2016.01.3.08.

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Primary production (PP) determines productivity of marine ecosystem, that’s why accuracy of PP assessment and investigation of regularities of primary synthesis of organic matter in World Ocean remain crucial. Based on new biooptical dataset spectral model of PP of the Black Sea has been developed for the first time. The model provides correct assessment of amount of light quanta absorbed by phytoplankton pigments and efficiency of their utilization in photosynthesis, which determines accuracy of PP assessment by this approach. In perspectives PP modelling using remote sensed data gives unique

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Custred, Glynn. "China and Our Perfidious Elite." Academic Questions 35, no. 3 (2022): 88–94. http://dx.doi.org/10.51845/35.3.16.

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Mendoza-Cedeno, Steven, Mu Sung Kweon, Sarah Newby, Maksim Shivokhin, George Pehlert, and Patrick C. Lee. "Improved Cell Morphology and Surface Roughness in High-Temperature Foam Injection Molding Using a Long-Chain Branched Polypropylene." Polymers 13, no. 15 (2021): 2404. http://dx.doi.org/10.3390/polym13152404.

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Long-chain branched polypropylene (LCB PP) has been used extensively to improve cell morphologies in foaming applications. However, most research focuses on low melt flow rate (MFR) resins, whereas foam production methods such as mold-opening foam injection molding (MO-FIM) require high-MFR resins to improve processability. A systematic study was conducted comparing a conventional linear PP, a broad molecular weight distribution (BMWD) linear PP, and a newly developed BMWD LCB PP for use in MO-FIM. The effects of foaming temperature and molecular architecture on cell morphology, surface roughn

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Guo, Liying, Xiuyun Ma, Bin Zhang, Zhiming Wang, and Pengcheng Huang. "Synthesis of polyether imidazole ionic liquid and its modification on polypropylene crystal structure and mechanical properties." e-Polymers 15, no. 1 (2015): 33–37. http://dx.doi.org/10.1515/epoly-2014-0128.

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AbstractPolyether imidazole ionic liquid (PIIL) was synthesized from N-ethyl iminazole and hydroxyl-terminated polyepichlorhydrin, produced through cationic ring-opening polymerization of epichlorohydrin using Et2O·BF3 as catalyst, and utilized for the modification of polypropylene (PP) by the method of melt blending. The prepared PIIL was characterized by Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. The resulting composite of PP and PIIL was characterized by differential scanning calorimetry and X-ray diffraction analyses. With PIIL acting as a nucle

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Moignard, Elizabeth. "Chian Pots - A. A. Lemos: Archaic Pottery of Chios: The Decorated Styles. (Oxford University Committee for Archaeology Monographs.) 2 Vols. Vol. I: Pp. xiv+335; Vol. II: Colour plates i-v+Monochrome 1–245, 109 figs. Oxford: Oxford Committee for Archaeology, 1991. Cased, £75." Classical Review 45, no. 2 (1995): 369–70. http://dx.doi.org/10.1017/s0009840x00294274.

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Głuszewski, Wojciech. "GC investigation of post-irradiation oxidation phenomena on polypropylene." Nukleonika 66, no. 4 (2021): 187–92. http://dx.doi.org/10.2478/nuka-2021-0027.

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Abstract The paper summarizes the results of research on gas products of polypropylene (PP) radiolysis. Particular attention was paid to the phenomena of post-radiation degradation of PP. The protective effect of selected aromatic compounds was investigated. The research was carried out both from the point of view of obtaining radiation-resistant PP varieties and the possibility of accelerating biodegradation phenomena, e.g., PP/cellulose composition. The phenomena of post-radiation chain oxidation of PP were investigated by gas chromatography (GC). The GC in the system used (packed column, th

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Vik, Jostein, and Gunn-Turid Kvam. "Governance and Growth – a Case Study of Norwegian Whey Protein Concentrate Exports." International Journal on Food System Dynamics 8, no. 4 (2017): 336–46. https://doi.org/10.18461/ijfsd.v8i4.846.

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In this article, we explore the global value chain (GVC) for whey protein concentrate (WPC 80) and permeate powder (PP) through a case study following the practicalities of the export of WPC 80 and PP from the Norwegian farmer-owned dairy cooperative, Tine SA. We follow processing, packaging, logistics and export administration. The study suggests that the value chain and the partnership between Tine and Arla Foods may be described as a “captive” global value chain were Tine is transactional dependent on the main actor, Arla Food Ingredients. We conclude by discussing some features of power re

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Kuo, Chung-Feng Jeffrey, Wei-Lun Lan, Shih-Hsiung Chen, Fang-Sian Lin, and Min-Yan Dong. "Development of disperse dye polypropylene fiber and process parameter optimization Part I: development of dyeable polypropylene fiber and parameter optimization." Textile Research Journal 88, no. 1 (2016): 3–13. http://dx.doi.org/10.1177/0040517516673335.

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This study develops polyester modified polypropylene (PP) with disperse dye dyeability. The thermal properties, rheological properties, and spectral properties are used for validation and differential analysis. The optimum PP dyeable particle process uses polyester as the mixed copolymer. The melt temperature of polyester material is significantly different from PP, which may lead to a failure of the mixing process. Therefore, this study aims to develop low-melting co-polyester. Different proportions of adipic acid are used in the co-polyester molecular chain to reduce the melting point. The m

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Lim, Changgyu, Yujin Jang, and Young-Wook Chang. "Polypropylene Modified with Polyethylene Through Reactive Melt Blending: Fabrication and Characterizations." Polymers 17, no. 1 (2024): 49. https://doi.org/10.3390/polym17010049.

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Conventional PP with a linear chain structure is not suitable for foam processing due to its poor rheological properties. In this study, PP was modified with PE through reactive melt blending of maleic anhydride-grafted PP (MA-PP) with a small amount of PE bearing glycidyl groups on its backbone (G-PE), with the aim of enhancing the melt rheological properties of PP to make it suitable for foam processing. An anhydride–epoxy reaction occurred between MA-PP and G-PE during the melt processing, resulting in the formation of a crosslinked polymer network, which was confirmed by FTIR spectroscopy,

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Aumnate, Chuanchom, Natalie Rudolph, and Majid Sarmadi. "Recycling of Polypropylene/Polyethylene Blends: Effect of Chain Structure on the Crystallization Behaviors." Polymers 11, no. 9 (2019): 1456. http://dx.doi.org/10.3390/polym11091456.

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The combination of high-density polyethylene (HDPE), low-density polyethylene (LDPE) and polypropylene (PP) is frequently found in polymer waste streams. Because of their similar density, they cannot be easily separated from each other in the recycling stream. Blending of PP/ polyethylenes (PEs) in different ratios possibly eliminate the sorting process used in the regular recycling process. PP has fascinating properties such as excellent processability and chemical resistance. However, insufficient flexibility limits its use for specific applications. Blending of PP with relative flexible PEs

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Raeva, Alisa, Dmitry Matveev, Nikolay Bezrukov, et al. "Highly Permeable Ultrafiltration Membranes Based on Polyphenylene Sulfone with Cardo Fragments." Polymers 16, no. 5 (2024): 703. http://dx.doi.org/10.3390/polym16050703.

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For the first time, copolymers of polyphenylene sulfone (PPSU) with cardo fragments of phenolphthalein (PP) were synthesized to develop highly permeable flat-sheet ultrafiltration membranes. By introducing cardo fragments into the polymer chain, we achieved a mechanical strength 1.3 times higher than the strength of commercial PPSU. It is shown that the introduction of the cardo monomer significantly increases the solubility of the polymer in aprotic solvents. The highest solubility is observed at the concentration of PP 50 mol.%. It is found that reduced viscosity of cardo polymer solutions l

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Wei, Ling, and Da Wei Li. "¹³C/⁷Li Solid-State Nuclear Magnetic Resonance Study on Poly(Ethylene Glycol)-Poly(Propylene Glycol)-Poly(Ethylene Glycol)/LiCF₃SO₃ Copolymer Electrolytes." Materials Science Forum 982 (March 2020): 26–33. http://dx.doi.org/10.4028/www.scientific.net/msf.982.26.

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Solid-state high-resolution 13C/7Li nuclear magnetic resonance (NMR) study was performed on the phase structure and chain dynamics of PEG-PPG-PEGn/LiCF3SO3 (n=3, 6, 12) copolymer electrolytes. PEG repeating units and Li+ form PEG3:LiCF3SO3 crystalline complex and PE3/Li+ amorphous complex in all the samples. PPG repeating units and Li+ form different complexes with respect to O:Li+ feed ratio (denoted as PP/Li+-3/6/12). The 13C chemical shifts and half widths of the signals from PP/Li+-3/6/12 remain unchanged, which implies the structures of PP/Li+-3/6/12 are similar at least in a very short r

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Song, Jiuqiang, Yan Qin, Jia Chen, and Siwen Qin. "Interfacial and Mechanical Properties of Continuous Fiber-Reinforced PP via Pre Impregnated Winding." Polymers and Polymer Composites 25, no. 1 (2017): 23–28. http://dx.doi.org/10.1177/096739111702500104.

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In this paper, a continuous glass fiber-reinforced polypropylene prepreg was prepared by fiber treatment with a silane coupling agent and MAH-g-PP resin. Continuous glass fiber-reinforced polypropylene sheets were made from prepreg and PP mats by hot-pressing; they displayed exceptional performance. This paper studies the effects of maleic anhydride grafting on the polypropylene crystallinity and MAH-g-PP content in the prepreg, and the mechanical properties of the composites. The results showed that modifying PP with maleic anhydride decreased the tacticity of the polypropylene molecular chai

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Moskowitz, Marc L. "Contesting Cyberspace in China: Online Expression and Authoritarian Resilience, Rongbin Han (2018) Zoning China: Online Video, Popular Culture, and the State, Luzhou Li (2019)." East Asian Journal of Popular Culture 9, no. 1 (2023): 146–49. http://dx.doi.org/10.1386/eapc_00096_5.

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Review of: Contesting Cyberspace in China: Online Expression and Authoritarian Resilience, Rongbin Han (2018) New York: Columbia University Press, 315 pp., ISBN 978-0-23118-475-5, p/bk, $32.00 Zoning China: Online Video, Popular Culture, and the State, Luzhou Li (2019) Boston, MA: MIT Press, 296 pp., ISBN 978-0-26204-317-5, h/bk, $40.00

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Ran, Xiang-bin, Hong-tao Chen, Jun-feng Wei, Qing-zhen Yao, Tie-zhu Mi, and Zhi-gang Yu. "Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China." Marine and Freshwater Research 67, no. 2 (2016): 173. http://dx.doi.org/10.1071/mf14344.

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Damming of river systems allowing the transformation of former rivers into artificial lakes will increase the transformation and retention of dissolved and sediment-associated phosphorus (P). The reservoir is therefore a ‘filter’ or ‘converter’, reducing and delaying the transport of nutrients to marine systems. Our study of the Three Gorges Reservoir (TGR) found that no stratification of phosphorus occurred, and the high particulate phosphorus (PP) concentrations upstream decreased gradually in the reservoir. Detrital P was found in greater concentrations in the surface sediment, accounting f

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Yeh, Chia-Nan, Pei-Yin Lee, and Jeng-Da Chai. "Electronic and Optical Properties of the Narrowest Armchair Graphene Nanoribbons Studied by Density Functional Methods." Australian Journal of Chemistry 69, no. 9 (2016): 960. http://dx.doi.org/10.1071/ch16187.

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In the present study, a series of planar poly(p-phenylene) (PPP) oligomers with n phenyl rings (n = 1–20), designated as n-PP, are taken as finite-size models of the narrowest armchair graphene nanoribbons with hydrogen passivation. The singlet-triplet energy gap, vertical ionization potential, vertical electron affinity, fundamental gap, optical gap, and exciton binding energy of n-PP are calculated using Kohn-Sham density functional theory and time-dependent density functional theory with various exchange-correlation density functionals. The ground state of n-PP is shown to be singlet for al

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ORTIZ WILLIAMS, SAMUEL GIBRAN. "EL MEMORANDO DE CHINA (CHINA´S MEMORANDUM)." Universos Jurídicos 21, no. 21 (2023): 141–55. http://dx.doi.org/10.25009/uj.v21i21.2671.

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Dos hegemonías globales luchan por el dominio del comercio y los recursos económicos de los países a nivel mundial: Los Estados Unidos de América y la República Popular de China. México no solamente es codiciado por su comercio dinámico y sus recursos naturales, sino que también se le considera como la cereza del pastel por su vecindad con los Estados Unidos de América. Nuestro país a diferencia de los demás países de América Latina tiene una amplia experiencia en el manejo de los Tratados Internacionales por lo que si llegara a firmar algún memorándum con China para su incorporación a la inic

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Krarup, Thomas, Lene D. Jakobsen, Bo S. Jensen, and Else K. Hoffmann. "Na+-K+-2Cl−cotransport in Ehrlich cells: regulation by protein phosphatases and kinases." American Journal of Physiology-Cell Physiology 275, no. 1 (1998): C239—C250. http://dx.doi.org/10.1152/ajpcell.1998.275.1.c239.

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To identify protein kinases (PK) and phosphatases (PP) involved in regulation of the Na+-K+-2Cl−cotransporter in Ehrlich cells, the effect of various PK and PP inhibitors was examined. The PP-1, PP-2A, and PP-3 inhibitor calyculin A (Cal-A) was a potent activator of Na+-K+-2Cl−cotransport (EC50 = 35 nM). Activation by Cal-A was rapid (<1 min) but transient. Inactivation is probably due to a 10% cell swelling and/or the concurrent increase in intracellular Cl− concentration. Cell shrinkage also activates the Na+-K+-2Cl−cotransport system. Combining cell shrinkage with Cal-A treatment prolong

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Oliver, F. R. "Book Review: Statistical Yearbook of China 1986." Journal of Interdisciplinary Economics 3, no. 1 (1989): 75. http://dx.doi.org/10.1177/02601079x8900300112.

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Trockner, Verena, and Erasmo Marrè. "Plasmalemma Redox Chain and H+ Extrusion." Plant Physiology 87, no. 1 (1988): 30–35. http://dx.doi.org/10.1104/pp.87.1.30.

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John, Huw A., Ian F. Purdom, and A. J. Wright. "Errata." Genetical Research 50, no. 3 (1987): 251. http://dx.doi.org/10.1017/s0016672300023788.

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Genet. Res., Camb. (1987), 50, pp. 17–21Heterogeneity of human haptoglobin α chains detected by two-dimensional gel electrophoresisThe running title for this article should have been Human plasma haptoglobin α chain heterogeneityGenet. Res., Camb. (1987), 50, pp. 63–68Additive variance and average effect with partial selfing(1) The second line of Table 1 should read

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Cipullo, Roberta, Antonio Vittoria, and Vincenzo Busico. "Assignment of Regioirregular Sequences in the 13C NMR Spectrum of Syndiotactic Polypropylene." Polymers 10, no. 8 (2018): 863. http://dx.doi.org/10.3390/polym10080863.

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The 13C NMR microstructure of a polypropylene (PP) sample is a fundamental source of information on its properties, and also a ‘fingerprint’ of the catalytic species used to produce it. Likely due to a much greater technological importance, isotactic polymers (i-PP) have been more thoroughly investigated that syndiotactic ones (s-PP). In this paper, we report the first full assignment of regioirregular sequences in s-PP samples made with two well-known molecular catalysts, namely a Cs-symmetric (cyclopentadienyl)(fluorenyl) ansa-zirconocene and a fluxional bis(phenoxyimine)Ti species. The resu

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Gallego, Kelly, Betty Lucy López, and Carmiña Gartner. "Study of blends from recycled polymer for properties improvement." Revista Facultad de Ingeniería Universidad de Antioquia, no. 37 (August 10, 2006): 59–70. http://dx.doi.org/10.17533/udea.redin.343417.

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Polypropylene (PP) presents low impact resistance at low temperatures and easily undergoes thermal degradation. On the other hand, polyethylene terephtalate (PET) is very hygroscopic. One way to overcome these weaknesses is to blend both polymers trying to reach a good interaction through the insertion of polar functional groups within the PP backbone chain. In this study, recycled PP was grafted with maleic anhydride (AM), and the insertion was quantified by measuring carbonyl index with a Fourier Transform Infrared Spectrophotometer (FTIR). Rheometer blends were prepared using recycled PP (g

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Kim, Do Young, Ji Hun Cha, and Kwan Ho Seo. "Effects of chain extender on properties and foaming behavior of polypropylene foam." RSC Advances 9, no. 44 (2019): 25496–507. http://dx.doi.org/10.1039/c9ra04824c.

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Wu, Juanjuan. "Fashion in Altermodern China, Feng Jie (2022)." Critical Studies in Fashion & Beauty 15, no. 2 (2024): 265–69. https://doi.org/10.1386/csfb_00084_5.

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Liu, Mengmeng. "Queer Media in China, Hongwei Bao (2021)." East Asian Journal of Popular Culture 9, no. 1 (2023): 143–45. http://dx.doi.org/10.1386/eapc_00095_5.

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Gortner, Florian, Peter Mitschang, Wiebke Neu, et al. "Efficient Process Chain for Processing Natural Fiber Reinforced Thermoplastics." Key Engineering Materials 809 (June 2019): 658–63. http://dx.doi.org/10.4028/www.scientific.net/kem.809.658.

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Natural fiber reinforced polymer composites (NFRPC) are conventionally processed in compression molding process to shell-shaped components, which are mostly used in automotive industry. Therefore, natural fibers (NF) and polypropylene (PP) as matrix system are processed to a thermoplastic organic sheet. Organic sheets are heated in a contact heating press to temperatures above melting temperature of the matrix and then transferred to a forming press. In this paper, Acrodur®Power 2750 X (AP) is used as an alternative to PP. This thermoplastic matrix system enables an increase of fiber content t

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Muñoz-Pascual, Santiago, Cristina Saiz-Arroyo, Zina Vuluga, Mihai Cosmin Corobea, and Miguel Angel Rodriguez-Perez. "Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites." Polymers 12, no. 4 (2020): 943. http://dx.doi.org/10.3390/polym12040943.

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In this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene–graft–maleic anhydride (PP-MA), a styrene-ethylene-butylene-styrene copolymer (SEBS), glass fibers (GF), and halloysite nanotubes (HNT-QM) have been foamed by using the improved compression molding route (ICM), obtaining relative densities of about 0.62. The combination of the inclusion of elastomer and rigid phases with the use of the LCB-PP led to foams with a better cellular structure, an improved ductility, and considerable values of the elastic mod

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Cakmak, M., and S. W. Cronin. "The Effect of Composition and Processing Conditions on the Structure Development in Injection Molded Dynamically Vulcanized PP/EPDM Blends." Rubber Chemistry and Technology 73, no. 4 (2000): 753–78. http://dx.doi.org/10.5254/1.3547619.

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Abstract The effect of composition and processing conditions on the spatial structural variation in dynamically vulcanized injection molded poly(propylene)/ethylene—propylene—diene rubber (PP/EPDM) was investigated using matrixing microbeam X-ray system and transmission optical microscopy techniques. The structure gradient in the thickness direction in these samples is composed of very thick, highly oriented, skin regions followed by core regions of lower preferential chain orientation. In these samples, the shear-crystallized layers are observed to be much thicker than the comparably processe

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