Relevant bibliographies by topics / Polyhydric

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Academic literature on the topic 'Polyhydric'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Polyhydric"

1

Sarsenov, A., V. K. Bishimbaev, B. A. Kapsalamov, K. K. Lepesov, K. M. Gapparova, and P. Grzesiak. "Chemical modification of cellulose for boron sorption from water solutions." Polish Journal of Chemical Technology 20, no. 4 (2018): 123–28. http://dx.doi.org/10.2478/pjct-2018-0064.

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Abstract It is shown that natural cellulose obtained from the walnut shell (Juglans regia) can be used for chemical modification of the selective boron sorbent. The modification was carried out by the coupling technique of chlorine derivatives of the polyhydric alcohols or polyols (mannitol, xylitol, sorbitol or glycerol). In this case new hybrid substances (sorbents) were obtained and they are represented by the formula: R-O-(CHOH)n-CH3, where R is a residue of the cellulose backbone, n is the number of functional (OH) groups of the polyhydric alcohols. The pulp mercerization was carried out
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Huang, Yuan Bo, Yun Wu Zheng, Hao Feng, Zhi Feng Zheng, and Ying Zi Jiang. "Study on Liquefaction of Corncob in Polyhydric Alcohols." Advanced Materials Research 183-185 (January 2011): 1110–13. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1110.

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The liquefaction of corncob in polyhydric alcohols was investigated by using sulfuric acid as a catalyst. Results showed that the best liquefaction could be obtained with residue percent of 4.5% under the conditions with the corncob/polyhydric alcohols mass ratio of 1/5, reaction temperature of 150°C, reaction time of 60 min, catalyst amount of 3% (based on the weight of corncob), PEG 400/glycerin mass ratio of 7/3 in the polyhydric alcohols, respectively. The liquefied liquid products had acid number of 18.9 mg KOH/g and hydroxyl number of 616.3mg KOH/g, respectively.
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Uraki, Yasumitsu, and Yoshihiro Sano. "Polyhydric Alcohol Pulping at Atmospheric Pressure: An Effective Method for Organosolv Pulping of Softwoods." Holzforschung 53, no. 4 (1999): 411–15. http://dx.doi.org/10.1515/hf.1999.068.

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Summary Polyhydric alcohol pulping was developed to separate components of low-quality softwoods that are produced by thinning and improvement cutting as well as to establish a self-supporting pulping system. Propylene glycol (PG) was superior to ethylene glycol (EG) as solvent for polyhydric alcohol pulping at atmospheric pressure. PG pulping of fir, larch and cedar, with sulfuric acid as a catalyst, gave satisfactory pulps with few rejects and a very low level of residual lignin as compared with EG pulping. The PG pulps were readily bleached to approximately Kappa number 1 and 80% brightness
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Duan, Zhiqiang, Mengyuan Yin, Chuanxian Zhang, et al. "Polyhydric polymer-loaded pyrene composites as powerful adsorbents and fluorescent probes: highly efficient adsorption and test strips-based fluorimetric analysis of curcumin in urine and plant extracts." Analyst 143, no. 2 (2018): 392–95. http://dx.doi.org/10.1039/c7an01403a.

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COMBES, D., M. GRABER, and W. N. YE. "Stabilizing Effect of Polyhydric Alcohols." Annals of the New York Academy of Sciences 613, no. 1 Enzyme Engine (1990): 559–63. http://dx.doi.org/10.1111/j.1749-6632.1990.tb18220.x.

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Huba, Zachary J., and Everett E. Carpenter. "A versatile synthetic approach for the synthesis of CoO, CoxC, and Co based nanocomposites: tuning kinetics and crystal phase with different polyhydric alcohols." CrystEngComm 16, no. 34 (2014): 8000–8007. http://dx.doi.org/10.1039/c4ce00931b.

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Zhang, Jin Ping, Meng Hao Du, and Li Song Hu. "Microwave Liquefaction for Bamboo Powder Polyhydric Alcohols and Preparation of Polyether Glycol." Advanced Materials Research 726-731 (August 2013): 151–55. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.151.

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The bamboo powder is liquefied by microwave heating with polyethylene glycol (400), glycerin and EC as liquefiers and sulfuric acid as a catalyst. The microwave liquefaction process for bamboo powder polyhydric alcohols is studied with the single factor experiment to determine the optimal liquefaction conditions, which is: mass ratio of polyethylene glycol (400) and glycerin is 80:20; the liquefaction rate is 99% in the liquid-solid mass fraction at 4:1, sulfuric acid mass fraction at 3%, and microwave power at 800W for 15 minute reaction. Hydroxyl value for liquefied product of bamboo powder
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Sheila, Srivastava, Singh Sarika, and Kumar Sharma Rajendra. "Kinetics and mechanism of the ruthenium(III) catalyzed oxidation of some polyhydric alcohols by acid bromate." Journal of Indian Chemical Society Vol. 84, Nov 2007 (2007): 1109–13. https://doi.org/10.5281/zenodo.5824548.

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Chemical Laboratories, Feroze Gandhi College, Rae Bareli-229 001, Uttar Pradesh, India <em>E-mail </em>: sheila72@yahoo.com <em>Manuscript received 4 April 2007, revised 28 August 2007, accepted 29 August 2007</em> Ruthenium(lll) catalyzed oxidation of some polyhydric alcohols <em>d</em>-sorbitol and d-mannitol by acidic solution of potassium bromate in the presence of mercuric acetate as a scavenger for Br<sup>- </sup>ion have been made in the temperature range 30-45 &bull;c. The reactions exhibit zero-order rate dependence with respect to each polyhydric alcohol and first order at low concen
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Zhuravlev, V. I., T. M. Usacheva, N. V. Lifanova, and E. P. Vydrina. "Dielectric properties of polyhydric alcohols: Butanediols." Russian Journal of General Chemistry 78, no. 6 (2008): 1189–96. http://dx.doi.org/10.1134/s1070363208060157.

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Rotger, M. Carmen, Antoni Costa, and Jose M. Saa. "Lithiation of polyhydric compounds. Salicylic acids." Journal of Organic Chemistry 58, no. 15 (1993): 4083–87. http://dx.doi.org/10.1021/jo00067a048.

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Dissertations / Theses on the topic "Polyhydric"

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Parker, Gemma M. "A new route to polyhydric alcohols." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/620/.

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Pentaerythritol is an important industrial chemical for use in paints and coatings, primarily, but also in fuels, explosives, medicine and polymers. The current process for this material is over 50 years old and is a multi-step process involving 3 homogeneous aldolizations and a crossed Cannizzaro reaction, generating 1.5 tonnes of waste for every 4 tonnes of product. This is also very energy inefficient. We are currently developing a radically different concept, shown below. This will deliver an integrated heterogeneous catalytic process with no waste and a high energy and materials efficienc
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Lilly, Arnys Clifton. "Monte Carlo simulation of aqueous dilute solutions of polyhydric alcohols." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54388.

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In order to investigate the details of hydrogen bonding and solution molecular conformation of complex alcohols in water, isobaric-isothermal Monte Carlo simulations were carried out on several systems. The solutes investigated were ethanol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol and glycerol. In addition, propane, which does not hydrogen bond but does form water hydrates, was simulated in aqueous solution. The complex alcohol-water systems are very nonideal in their behavior as a function of solute concentration down to very dilute solutions. The water model employed was
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Love, Jason B. "Heterobimetallic polyhydride and alkyl polyhydride complexes of rhenium." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335488.

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Hinman, Justin Grant. "Acidity of neutral transition metal polyhydride complexes and the study of anionic rhenium and ruthenium polyhydride dimers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62939.pdf.

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Berry, Adam. "Anionic polyhydride compounds of the transition metals." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670367.

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Wu, Chiou-Chang, and 吳秋昌. "Preparation of Polyhydric Alcohol Liquefied Woody Material-Epoxy Resin Polyblends and Its Applications." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/90231745212281113300.

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Chang, Chia-Fang, and 張嘉方. "Polyhydric Alcohol Liquefied Wood and Its Application in the Manufacturing of Polyurethane Foam." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/63980559130281424194.

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碩士<br>國立中興大學<br>森林學系<br>91<br>SUMMARY China fir (Cunninghamia lanceolata) and Taiwan acacia (Acacia confusa) wood were liquefied in polyhydric alcohol at the presence of H2SO4 as catalyst. The effects of wood species, molecular weight of polyethylene glycol (PEG), PEG/Glycerol ratio, catalyst content, and treatment time on liquefaction result were investigated in this study. In preparation of polyurethane(PU) foam, these liquefied woods were further reacted with four kinds of isocyanate, such as HDI (Hexamethylene diisocyanate)、PMDI (Polymeric methylene diphenylene diisocyanate)、Des
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Hu, Ming-Shan, and 胡銘珊. "Application of Polyhydric Alcohol Liquefied Lignin in Preparing Waterborne Polyurethane Resins and Organic-Inorganic Hybrids." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06656087395594853498.

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碩士<br>國立中興大學<br>森林學系所<br>101<br>In this study, waterborne polyurethane (PU) resins were prepared by reacting isophorone diisocyanate (IPDI) with polyol that polyhydric alcohol liquefied lignin (LL) was being substituted for partial polytetramethylene ether glycol (PTMG). In addition, the performance of waterborne PU resins those prepared with ethylenediamine (EDA) and 1,4-butanediol (1,4-BD) as chain extender was compared. Furthermore, the modified waterborne PU resin that containing alkoxysilane groups was prepared by adding 3-aminopropyltriethoxysilane (APTES) during resins synthesis. The p
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Juan, Yu-Mei, and 阮幼梅. "Study on Manufacturing of PU Foams and Elastomers from the Polyhydric Alcohol Liquefied Cryptomeria Japonica." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/92660302662609874842.

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碩士<br>國立中興大學<br>森林學系所<br>95<br>In this study, both the untreated and ethanol extracted wood and bark of Cryptomeria japonica were liquefied in polyethylene glycol-glycerol co-solvent with HCl and H2SO4 as catalyst. The residue content, viscosity, nonvolatile, acid number and hydroxyl number of the liquefied materials were used as the index to evaluate the efficiency of liquefaction. The liquefied materials were blended with PMDI (poly-4,4’-diphenylmethane diisocyanate), and adding water as a blowing agent, organosiloxane as a surfactant and dibutyl tin dilaurate as a catalyst to prepare the
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Jeng, Yan-Yu, and 鄭彥宇. "Study on Polyhydric Alcohol Liquefied Waste Papers and Application in the Manufacturing of Polyurethane Resins." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/80839684856547824764.

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Books on the topic "Polyhydric"

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Love, Jason B. Heterobimetallic polyhydride and alkyl polyhydride complexes of rhenium. University of Salford, 1993.

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2

Coffey, S. Penta- and Higher Polyhydric Alcohols, Their Oxidation Products and Derivatives, Saccharides: A Modern Comprehensive Treatise. Elsevier, 2013.

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Coffey, S. Aliphatic Compounds : Penta- and Higher Polyhydric Alcohols; Their Oxidation Products and Derivatives; Saccharides: A Modern Comprehensive Treatise. Elsevier, 2016.

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Rodd's Chemistry of Carbon Compounds, Aliphatic Compounds: Trihydric Alcohols, Their Oxidation Products and Derivatives, Penta- and Higher Polyhydric ... Their Oxidation Products and Derivatives. Elsevier, 2013.

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Sainsbury, Malcolm. Aliphatic Compounds: Trihydric Alcohols, Their Oxidation Products and Derivatives, Penta- and Higher Polyhydric Alcohols, Their Oxidation Products and Derivatives; Saccharides, Tetrahydric Alcohols, Their Oxidation Products and Derivatives. Elsevier, 2016.

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Hinman, Justin Grant. Acidity of neutral transition metal polyhydride complexes and the study of anionic rhenium and ruthenium polyhydride dimers. 2001.

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Book chapters on the topic "Polyhydric"

1

Gooch, Jan W. "Polyhydric Alcohol." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9098.

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Walser, A., and R. Ian Fryer. "Tetrahydro- and Polyhydro-1,4-Benzodiazepines." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470187371.ch9.

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"Polyhydric alcohol." In Encyclopedic Dictionary of Polymers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_8946.

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"Polyhydric alcohol." In Encyclopedic Dictionary of Polymers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_8949.

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Wypych, Anna, and George Wypych. "Polyhydric alcohols." In Databook of Solvents. Elsevier, 2024. http://dx.doi.org/10.1016/b978-1-77467-044-6.50023-0.

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Anna and George Wypych. "Polyhydric alcohols." In Databook of Solvents. Elsevier, 2014. http://dx.doi.org/10.1016/b978-1-895198-66-9.50022-9.

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"polyhydric, adj." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/7315421215.

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"Chapter 10 Polyhydric phenols." In Studies in Organic Chemistry. Elsevier, 1996. http://dx.doi.org/10.1016/s0165-3253(96)80037-x.

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Jenkins, P. D. "Polyhydric alcohols and their oxidation products." In Second Supplements to the 2nd Edition of Rodd's Chemistry of Carbon Compounds. Elsevier, 1991. http://dx.doi.org/10.1016/b978-044453347-0.50048-3.

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Lengeler, Joseph W. "[35] Polyhydric alcohol transport by bacteria." In Methods in Enzymology. Elsevier, 1986. http://dx.doi.org/10.1016/s0076-6879(86)25037-5.

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Conference papers on the topic "Polyhydric"

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de Barros Bouchet, M. I., C. Matta, J. M. Martin, and L. Joly-Pottuz. "Superlubricity of Steel Surfaces in Presence of Polyhydric Alcohols." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71004.

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Anomalous low friction of hydrogen-free tetrahedral hybridized carbon (ta-C) coated surfaces lubricated by pure glycerol was observed at 80°C. In the presence of glycerol, the friction coefficient is below 0.01 at steady state, corresponding to so-called superlubricity regime. This new mechanism of superlow friction is attributed to easy glide on tribo-formed OH-terminated surfaces. In addition to the formation of OH-terminated surfaces but at a lower temperature, we show here some evidence that superlow friction of polyhydric alcohols could also be associated with tribo-induced degradation of
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Nozaki, Ryusuke. "THz dielectric dispersions in pentanol isomers and origin of boson peak in polyhydric alcohols." In 4TH INTERNATIONAL SYMPOSIUM ON SLOW DYNAMICS IN COMPLEX SYSTEMS: Keep Going Tohoku. American Institute of Physics, 2013. http://dx.doi.org/10.1063/1.4794580.

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Alotaibi, F., M. Rafie, T. Almubarak, and A. Alomair. "Insights into H2S Scavengers and Corrosion Inhibitor Interactions for Sour Crude Applications." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-24603-ms.

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Abstract Hydrogen Sulfide (H2S) produces an acidic fluid that is corrosive to equipment, tubulars, and facilities generating what is called "sour corrosion". One viable option to handle this gas in processing facilities is to use H2S scavengers. The main objective of this study is to evaluate six different H2S scavengers aiming to reduce the effect of H2S gas in crude oil feeds without jeopardizing the corrosion inhibitor performance that used in Gas Oil Separation Plant (GOSP). The tested scavengers were derived from different chemical families. Some of the active compounds of these scavenger
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Liu, Shiduo, Yong Liu, Tingsong Xiong, et al. "Study on Matrix Acidizing of Low-Permeability Hybrid Sediment Rocks Using Microemulsion Retarded Acid." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0370.

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ABSTRACT The high reaction rate of hydrochloric acid, the low dissolution rate of organic acids, and the difficulty of injection of highly viscous gelled acids are all unsuitable for the acidification of low-permeability hybrid sediment reservoirs. The lithology of hybrid sediment rock reservoir is complex, and the dissolution rate of single acid is low. In this paper, an oil-in-water (O/W) microemulsion retarded acid is developed, and acidizing performance is studied. The microemulsion can be diluted in the acid system, and the structure of the microemulsion is not destroyed. The average part
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