Academic literature on the topic 'Polymerized Chain'

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Journal articles on the topic "Polymerized Chain"

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Liu, Xiong, Neil Billington, Shi Shu, et al. "Effect of ATP and regulatory light-chain phosphorylation on the polymerization of mammalian nonmuscle myosin II." Proceedings of the National Academy of Sciences 114, no. 32 (2017): E6516—E6525. http://dx.doi.org/10.1073/pnas.1702375114.

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Addition of 1 mM ATP substantially reduces the light scattering of solutions of polymerized unphosphorylated nonmuscle myosin IIs (NM2s), and this is reversed by phosphorylation of the regulatory light chain (RLC). It has been proposed that these changes result from substantial depolymerization of unphosphorylated NM2 filaments to monomers upon addition of ATP, and filament repolymerization upon RLC-phosphorylation. We now show that the differences in myosin monomer concentration of RLC-unphosphorylated and -phosphorylated recombinant mammalian NM2A, NM2B, and NM2C polymerized in the presence
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Ito, Masayoshi, Hidefumi Shioda, and Koji Tanaka. "Chain orientation of electrochemically polymerized polythiophene films." Journal of Polymer Science Part C: Polymer Letters 24, no. 4 (1986): 147–51. http://dx.doi.org/10.1002/pol.1986.140240401.

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Li, Hong Qiang, Xue Jun Lai, Jian Hua Guo, and Xing Rong Zeng. "Preparation and Characterization of Polymerized Rosin/Polyacrylates Composite Miniemulsions." Applied Mechanics and Materials 665 (October 2014): 251–54. http://dx.doi.org/10.4028/www.scientific.net/amm.665.251.

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Polymerized rosin/polyacrylate composite miniemulsions were prepared by in-situ semi-continuous miniemulsion polymerization method with polymerized rosin as tackifying resin. The effect of polymerized rosin amount on the monomer conversion rate, the water absorption rate, adhesion properties including initial force, 180opeel strength and shear resistance of the composite latex films were studied, and the structure was also characterized by FTIR and DSC. The results showed that polymerized rosin played the role of inhibition and chain transfer agent in the polymerization process. Polymerized ro
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Oishi, Eri, Masumi Takamura, and Tatsuhiro Takahashi. "Removal of Trithiocarbonyl End Group of RAFT-Polymerized Poly(stearyl acrylate) and Effect of the End Group on Thermal and Structural Properties." Polymers 13, no. 23 (2021): 4169. http://dx.doi.org/10.3390/polym13234169.

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The effect of a long alkyl end group on the thermal and structural properties of RAFT (reversible addition-fragmentation chain transfer)-polymerized poly(stearyl acrylate) (PSA) was investigated. RAFT-polymerized PSA was prepared using 2-cyano-2-[(dodecylsulfanylthiocarbonyl) sulfanyl] propane (CDTP) with long alkyl group as a chain transfer agent and azobisisobutyronitrile (AIBN) as an initiator. The RAFT polymerization resulted in the polymerized structure having trithiocarbonyl (TTC) at one end and isobutyronitrile at the other end. RAFT-polymerized PSA was prepared with two different molec
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Yoshimura, Daiki, Shinji Yamada, and Akinori Takasu. "A polyester–polystyrene hybrid connected by dynamic covalent bonds prepared via radical polymerization of styrene in a “RAFT gel”." Polym. Chem. 5, no. 11 (2014): 3689–96. http://dx.doi.org/10.1039/c4py00052h.

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We cross-linked the polyester chains with 1,1-thiocarbonyldiimidazole to form a reversible addition–fragmentation chain-transfer (RAFT) gel, in which the trithiocarbonate moiety acted as a cross-linker. The “RAFT gel” was then swollen in vinyl monomers and styrene was radically polymerized within the gel, in which the polyester and polystyrene segments were miscible at the segment level.
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Liu, Zhipeng, Shuli Wei, Yanhui Guo, et al. "Pressure-induced stability and polymeric nitrogen in alkaline earth metal N-rich nitrides (XN6, X = Ca, Sr and Ba): a first-principles study." RSC Advances 11, no. 28 (2021): 17222–28. http://dx.doi.org/10.1039/d1ra01631h.

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The Fddd-SrN<sub>6</sub> structure can transform into P1̄-SrN<sub>6</sub>, and polymerized to infinite nitrogen chain structures at P = 22 GPa. For BaN<sub>6</sub>, the Fmmm-BaN<sub>6</sub> structure can transform into C2/m-BaN<sub>6</sub>, and polymerized to N<sub>6</sub> ring network structure at P = 110 GPa.
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Shinohara, Yoshikazu, Yoshio Imai, Yukihiro Isoda, Kentaro Hiraishi, and Hachiro Nakanishi. "A New Challenge of Polymer Thermoelectric Materials as Ecomaterials." Materials Science Forum 539-543 (March 2007): 2329–32. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.2329.

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Typical conductive polymers of poly(3-alkylthiophenes) were synthesized by oxidative polymerization. Polythiophene with no side chain was also electrolyticaly polymerized. Alkyl side chains were CnH2n+1 with n=4, 6, 8, 12. The regioregularity with the HT linkage was larger than 99% based on NMR analysis. We have evaluated the effect of side chain size on the thermoelectric properties of Seebeck coefficient and electrical conductivity. The results were as follows: 1) Seebeck coefficient decreased with an increasing electrical conductivity. 2) High Seebeck coefficient &gt;1mV/K was observed at l
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Maupu, Alexandre, Yara Kanawati, Adrien Métafiot, and Milan Maric. "Ethylene Glycol Dicyclopentenyl (Meth)Acrylate Homo and Block Copolymers via Nitroxide Mediated Polymerization." Materials 12, no. 9 (2019): 1547. http://dx.doi.org/10.3390/ma12091547.

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Nitroxide-mediated polymerization (NMP), (homo and block copolymerization with styrene (S) and butyl methacrylate/S) of ethylene glycol dicyclopentenyl ether (meth)acrylates (EGDEA and EGDEMA) was studied using BlocBuilder alkoxyamines. EGDEA homopolymerization was not well-controlled, independent of temperature (90–120 °C), or additional free nitroxide (0–10 mol%) used. Number average molecular weights (Mn) achieved for poly(EGDEA) were 4.0–9.5 kg mol−1 and were accompanied by high dispersity (Ð = Mw/Mn = 1.62–2.09). Re-initiation and chain extension of the poly(EGDEA) chains with styrene (S)
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Zhao, Yan-Ling, Rui-Qin Zhang, Christian Minot, Klaus Hermann, and Michel A. Van Hove. "Computational prediction of optimal metal ions to induce coordinated polymerization of muscle-like [c2]daisy chains." Physical Chemistry Chemical Physics 18, no. 10 (2016): 7419–26. http://dx.doi.org/10.1039/c5cp07772a.

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Zhu, Rong, Xingyu Luo, Lu Deng, et al. "An enzymatic polymerization-activated silver nanocluster probe for in situ apoptosis assay." Analyst 143, no. 12 (2018): 2908–14. http://dx.doi.org/10.1039/c8an00535d.

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Dissertations / Theses on the topic "Polymerized Chain"

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Pacheco, Wanessa de Andrade. "Excreção de Brucella abortus, estirpe B19 pelo leite e urina de fêmeas bovinas de diferentes faixas etárias vacinadas contra brucelose e sua relação com o ciclo reprodutivo." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-14092007-144915/.

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O Programa Nacional de Controle e Erradicação de Brucelose e Tuberculose (PNCEBT) proposto pelo MAPA (Ministério da Agricultura Pecuária e Abastecimento) adotou como medida central à vacinação com a B19 de todas as fêmeas das espécies bovina e bubalina, entre três e oito meses de idade. Embora a B19 seja capaz de conferir 65 a 70 % de proteção contra a maioria dos níveis de exposição de fêmeas bovinas, se utilizada na dose correta e na idade recomendada, o período de excreção e seu efeito sobre animais comunicantes e suscetíveis, incluindo o homem ainda são pouco conhecidos e por se tratar de
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Book chapters on the topic "Polymerized Chain"

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DeAngelis, Paul L. "Methods for the Pasteurella Glycosaminoglycan Synthases: Enzymes that Polymerize Hyaluronan, Chondroitin, or Heparosan Chains." In Methods in Molecular Biology. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-465-4_17.

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Perkins, John. "Energetics, kinetics, and mechanism." In Radical Chemistry: The Fundamentals. Oxford University Press, 2000. http://dx.doi.org/10.1093/hesc/9780198792895.003.0003.

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This chapter reviews some basic aspects of the energetics and kinetics of radical processes and the factors that determine them. It examines the decomposition of a dilute solution of a diacyl peroxide in an unreactive, non-polar medium, such as benzene. It also provides a kinetic analysis of the use of peroxide to initiate a chain reaction in which an alkene is polymerized, and demonstrates how slow propagations may compete with diffusion-controlled termination. The chapter discusses the modest stabilization found with alkyl-substituted methyl radicals that can be attributed in part to hyperco
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Thomas, Alison. "The Biochemical Basis of Heredity." In Thrive in Genetics. Oxford University Press, 2013. http://dx.doi.org/10.1093/hesc/9780199694624.003.0007.

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This chapter addresses the biochemical basis of heredity. Nucleotides, which polymerize to form long chains, are the building blocks of DNA and RNA. A DNA molecule consists of two chains of nucleotides coiled around each other to form a double helix, while an RNA molecule consists of a single chain. The DNA double helix is formed by complementary base pairing between nucleotides on opposite strands. During DNA replication, the two strands separate and each becomes a template for the synthesis of a new strand. The sequence of nucleotides encodes the genetic information. The chapter then looks a
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Banerjee, Avijit, and Timothy F. Watson. "Restorative materials and their relationship to tooth structure." In Pickard's Guide to Minimally Invasive Operative Dentistry. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198712091.003.0010.

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Modern restorative materials can be classified in several ways, in terms of their retention (chemically adhesive, macro-, micro- or even nanomechanical), their chemistry (e.g. resin-based vs. acid–base reaction, filler particles), or their clinical properties (e.g. aesthetics, strength, handling). It is essential that these materials are considered closely with the histological substrate to which they will adhere or with which they will interact, in order to understand the complexities of each system and their potential clinical uses. This chapter will outline and discuss aspects of dental mat
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Prasad, A. "Polyethylene, Elastomeric (very highly branched)." In Polymer Data Handbook. Oxford University PressNew York, NY, 2009. http://dx.doi.org/10.1093/oso/9780195181012.003.0109.

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Abstract Introduction POE is a new family of ethylene α-olefin copolymers produced using a metallocene catalyst. The metallocene catalyst selectively polymerizes the ethylene and comonomer sequence and on increasing the comonomer content, produces chains of higher elasticity due to efficient incorporation of the comonomer that effectively disrupts the polymer crystallinity. The uncross-linked polymers referred to in this chapter are known to have only moderate elastomeric recovery properties (up to 96%). These copolymers are characterized by a narrow molecular weight distribution (MWD) (Mw /Mn
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Bajpai, Pratima. "Biosynthesis of Bacterial Nanocellulose." In Bacterial Nanocellulose for Papermaking and Packaging. BENTHAM SCIENCE PUBLISHERS, 2024. https://doi.org/10.2174/9789815322163124010006.

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Bacterial nanocellulose (BNC) biosynthesis is a well-organized and strictly controlled process and has two stages: first, the formation of 1,4-glucan linkages, and subsequently the assembly and cellulose crystallization. The process starts with the carbon source, such as glucose and fructose, being transported into the cell, where the cellulose precursor UDPG is produced. Bcs then polymerizes glucose from UDPG into 1,4-glucan strands. Finally, cellulose chains are secreted as sub-fibrils through pores in the cell membrane and then combined into ribbons in a 3D nanofiber network supported by hy
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Mark, James E., Harry R. Allcock, and Robert West. "Ferrocene-Based Polymers, and Additional Phosphorus- and Boron-Containing Polymers." In Inorganic Polymers. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195131192.003.0010.

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Ferrocene is an inexpensive, stable molecule with an interesting and reversible electrochemistry. It is synthesized by the metal-hydrogen exchange reaction of cyclopentadiene with sodium followed by treatment of the resultant sodium cyclopentadienide anion with ferrous chloride. The high stability and electroactivity of the ferrocene molecule has prompted numerous attempts to incorporate it into polymer structures. So, too, has the inherent torsional freedom of the cyclopentadienyl groups around the iron atoms and their capacity to serve as swivel group sites. Polymerization attempts range fro
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Duyuran, Rumeysa, and Hülya Çiçek. "Investigation of Sickle Cell Nephropathy." In Novel Topics in the Diagnosis, Treatment, and Follow-Up of Nephritis, Nephrotic Syndrome, and Nephrosis [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.113757.

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In 1910, Herrick JB first described sickle cell nephropathy in a black student. He described anemia with elongated sickle-shaped red blood cells, increased urine volüme, and decreased urine density. Sickle cell disease is a genetically inherited disease that affects many systems and is a clinical condition that occurs when red blood cells contain modified HbS. The main features of the disease are recurrent painful attacks, chronic hemolytic anemia, and acute and chronic organ dysfunction. HbS is formed by the replacement of glutamine at position 6 at the amino (-NH2) end of the beta-globin cha
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Kalinyak, Karen. "Sickle Cell Anemia." In Pediatric Nutrition In Chronic Diseases And Developmental Disorders. Oxford University PressNew York, NY, 2005. http://dx.doi.org/10.1093/oso/9780195165647.003.0034.

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Abstract Sickle cell anemia (SCA) is a genetic disorder in which a sickle gene (Hb S) is inherited from each parent. Persons with sickle cell trait (Hb AS) carry the sickle gene but under normal circumstances are completely asymptomatic. The sickle gene is prevalent in people of African, Italian, Sicilian, Egyptian, Turkish, Arabian, and Asiatic Indian background. In the United States, sickle cell disease is found predominantly in African Americans. About 1 of every 12 African Americans are asymptomatic carriers (have sickle cell trait), and approximately 1 of every 400 African American newbor
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Conference papers on the topic "Polymerized Chain"

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Walsh, E. J., P. A. Walsh, R. Grimes, and M. R. D. Davies. "On the Entropic Heating of Microfluidics for PCR Applications." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41423.

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Polymerized Chain Reaction (PCR) technology has for a number of years been used as a tool for a range of applications in genetic research. Indeed, in the world of genetics PCR is considered to be one of the most important discoveries of the last century. This work is focused upon understanding and utilizing the thermodynamics of the fluid flow through microsystems, with the aim of developing an efficient thermocycler for PCR applications. The novel approach of utilizing the entropy generation rate in a couette type flow to provide entropic heating to the bio-fluid is addressed. The advantages
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Dalle Vacche, Sara. "Biobased composites from renewable monomers and cellulosic reinforcements by photoinduced processes." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/ingy4050.

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Polymeric materials are under tremendous pressure for improving their greenness: despite their important role in several essential aspects of human life, in public opinion they are mostly associated with single-use plastics pollution and use of fossil resources. Sustainable polymer-based materials may be prepared from biobased monomers and polymers, through photoinduced processes. Owing to low energy requirements, high reaction rates at room temperature, and low VOC emissions, photoinduced polymerization is recognized as a green technology. Among the biobased monomers explored in this field, t
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Dalle Vacche, Sara. "Bio-based cationic waterborne polyurethane dispersions from high oleic soybean oil." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/xdga8424.

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Polymeric materials are under tremendous pressure for improving their greenness: despite their important role in several essential aspects of human life, in public opinion they are mostly associated with single-use plastics pollution and use of fossil resources. Sustainable polymer-based materials may be prepared from biobased monomers and polymers, through photoinduced processes. Owing to low energy requirements, high reaction rates at room temperature, and low VOC emissions, photoinduced polymerization is recognized as a green technology. Among the biobased monomers explored in this field, t
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Wylde, Jonathan J. "The Challenges Associated with Reaction Products Left in Scale Inhibitor Species after Radical Polymerization." In SPE International Oilfield Scale Conference and Exhibition. SPE, 2014. http://dx.doi.org/10.2118/spe-169778-ms.

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Abstract The use of polymeric scale inhibitors has been ubiquitously accepted by the oil and gas industry for many years. There are many benefits to the use of this type of chemistry that include aspects such as high performance, scale species selectivity, enhanced brine compatibility, favorable environmental properties and high thermal stability. A very common way to manufacture polymeric scale inhibitors is via free radical polymerization. Here an initiator is used to propagate the generation of free radicals from a species, such as hydrogen peroxide. The initiator chemistry can be very vari
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Li, He, and George Lykotrafitis. "A Coarse-Grained Molecular Dynamics Model for Sickle Hemoglobin Fibers." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37980.

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The intracellular polymerization of deoxy sickle cell hemoglobin (HbS) has been identified as the main cause of sickle cell disease. Therefore, the material properties and biomechanical behavior of polymerized HbS fibers have been a topic of intense research interest. A solvent-free coarse-grained molecular dynamics (CGMD) model has been developed and it represents a single hemoglobin fiber with four tightly bonded chains, each of which comprises soft particles. A harmonic spring potential, a bending potential, a torsional potential, and a Lennard-Jones potential are introduced along with a La
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Barrett, Brian, Mark Davies, and Angela Morris. "Thermal Analysis of a Novel Continuous Flow Multi Layered Polymerase Chain Reaction Device." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32792.

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In this paper are presented the results of a thermal analysis on a high throughput droplet based, nucleic acid amplifier. Initial data of successful amplification of DNA is also presented. The advent of microfluidics offers many opportunities to integrate all functional steps of DNA analysis onto a single platform allowing for reduced analysis times, reduced sample volume requirements and higher throughput. There are many technical challenges facing this goal, thermal control being pivotal. This paper involves fundamental theoretical and experimental characterization of the core element of suc
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