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Journal articles on the topic 'Polyhydric alcohols'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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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 by processing the ground walnut shell (WS) with hot solution of sodium hydroxide. Chlorination of polyhydric alcohols was carried out by gaseous hydrochloric acid sparging through the polyhydric alcohol aqueous solution. The coupling process proceeds according to the mechanism of substitution of the cellulose hydroxyl groups with chlorine atoms.

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2

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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3

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 polyhydric alcohols is 300-400mgKOH/g. Analysis of liquefied products by infrared spectrum and GC-MS shows there are a great many such compounds as alcohol ethers and esters in liquefied products.

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4

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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5

S., N. BANERJEE, and R. GUHA B. "Study of Corrosion Inhibition Property of Polyhydric Alcohols in Relation to their Adsorption Properties." Journal of Indian Chemical Society Vol. 64, Sep 1987 (1987): 525–29. https://doi.org/10.5281/zenodo.6219170.

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Chemistry Department, R. E. College, Durgapur-713 209 Central Mechanical Engineering Research Institute, Durgapur-713 209 <em>Manuscript received 8 May 1986, revised 3 June 1987, accepted 11 August 1987</em> Some polyhydric alcohols have been investigated as surface active and corrosion inhibitive species in mild steel —1 <em>N </em>sulphuric acid solution system at 25 ± 0.5°. The adsorption characteristics or these compounds have been determined by a capillary electrometer ; and dependence of the adsorption on structure and concentration of the adsorbate and on potential and charge at the mercury —solution interface has been discussed. The interrelationship between the electrocapillary properties of the compounds and their inhibitive efficiencies in acid corrosion of mild steel have been studied in the light of phi-potential theory.

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6

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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7

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 •c. The reactions exhibit zero-order rate dependence with respect to each polyhydric alcohol and first order at low concentration range of KBrO<sub>3</sub> was observed to tend to zero at its higher concentrations. A suitable mechanism consistent with the experimental results has been proposed.

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8

AMALENDU, BANERJEE, MANDAL DINABANDHU, PUTATUNDA ANUVA, and CHANDRA BANERJEE GOPAL. "Determination of Glykitols and other Polyhydric Alcohols by Vanadium(v) in Perchloric Acid." Journal of Indian Chemical Society Vol. 74, Aug 1997 (1997): 667–69. https://doi.org/10.5281/zenodo.5895321.

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Department of Chemistry, Jadavpur University, Calcutta-700 032 <em>Manuscript received 18 January 1996, revised 15 July 1996, accepted 2 August 1996</em> Determination of Glykitols and other Polyhydric Alcohols by Vanadium(v) in Perchloric Acid.

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9

J., SUNITHA, and K. SAIPRAKASH P. "Kinetic Study of Hydrolysis of Sucrose catalysed by Invertase in Aquo-polyhydric Alcohols." Journal of Indian Chemical Society Vol. 73, Apr-May 1996 (1996): 199–202. https://doi.org/10.5281/zenodo.5892557.

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Department of Chemistry, Osmania University, Hyderabad-500 007 <em>Manuscript received 28 February 1994, revised 13 July 1994, accepted 22 July 1994</em> Kinetic Study of Hydrolysis of Sucrose catalysed by Invertase in Aquo-polyhydric Alcohols.

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10

Pavlik, Christopher, Amber Onorato, Steve Castro, Martha Morton, Mark Peczuh, and Michael B. Smith. "An Unexpectedly Facile Cyclization of Polyhydric Alcohols." Organic Letters 11, no. 16 (2009): 3722–25. http://dx.doi.org/10.1021/ol9013427.

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11

Kubo, Eiichiro, Ayumi Minoguchi, Hajime Sotokawa, and Ryusuke Nozaki. "Nearly constant dielectric loss of polyhydric alcohols." Journal of Non-Crystalline Solids 352, no. 42-49 (2006): 4724–28. http://dx.doi.org/10.1016/j.jnoncrysol.2006.01.107.

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12

Bernier, Rene F., та Fred J. Stutzenberger. "Stabilization of β-glucosidase by polyhydric alcohols". Journal of Biotechnology 7, № 4 (1988): 293–98. http://dx.doi.org/10.1016/0168-1656(88)90041-7.

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13

Petrova, G. N., and O. N. Efimov. "Electrocatalytic reduction of polyhydric alcohols to hydrocarbons." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 40, no. 7 (1991): 1507–9. http://dx.doi.org/10.1007/bf00961270.

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14

Karatani, H. "An electrochemically triggered chemiluminescence from polyhydric alcohols." Journal of Photochemistry and Photobiology A: Chemistry 79, no. 1-2 (1994): 71–80. http://dx.doi.org/10.1016/1010-6030(93)03737-2.

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15

Makowska, Anna, Ewa Dyoniziak, Agnieszka Siporska, and Jerzy Szydłowski. "Miscibility of Ionic Liquids with Polyhydric Alcohols." Journal of Physical Chemistry B 114, no. 7 (2010): 2504–8. http://dx.doi.org/10.1021/jp911660a.

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16

Kojima, S., T. Koketsu, E. Takahashi, and M. Kanayasu. "Complex thermal effusivity of glassy polyhydric alcohols." Fluid Phase Equilibria 88 (August 1993): 209–18. http://dx.doi.org/10.1016/0378-3812(93)87112-e.

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17

Bazunova, Marina V., Roman Yu Lazdin, Mariya R. Elinson, Lucia A. Sharafutdinova, Robert A. Mustakimov, and Elena I. Kulish. "On the possibility of obtaining the elastic and biocompatible film materials based on chitosan and N-succinyl chitosan." Chimica Techno Acta 9, no. 1 (2022): 20229108. http://dx.doi.org/10.15826/chimtech.2022.9.1.08.

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For the first time, the studies of polyhydric alcohols (glycerol, ethylene glycol and propylene glycol) impact on the structure, deformation–strength characteristics and hemocompatibility of the film materials based on chitosan and N-succinyl chitosan were carried out. It was shown that the introduction of polyhydric alcohols into molding solutions during the creation of the films based on chitosan and succinyl chitosan in the amount up to 0.05 mol/l is accompanied by the tensile elongation value increase by 2–2.5 times. The value of the breaking stress in this case decreases by 3–4 times. There is also a decrease in the overall surface roughness and a sharp drop in the elastic modulus of the films. The stabilizing impact of the systems based on chitosan and succinyl chitosan in the presence of glycerol and propylene glycol upon the cell membranes in physiological conditions allows inferring their high hemocompatibility.

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18

Machneva, O. P., V. ,Ye Tsvetkov, and M. Yu Yekimova. "Polyhydric alcohols as modifiers of urea-formaldehyde resins." Adhesives. Sealants. Technologias, no. 12 (2018): 15–18. http://dx.doi.org/10.31044/1813-7008-2018-0-12-15-18.

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19

Uyama, Makoto, Makoto Harada, Takehiko Tsukahara, and Tetsuo Okada. "Behavior of Polyhydric Alcohols at Ice/Liquid Interface." Journal of Physical Chemistry C 117, no. 47 (2013): 24873–82. http://dx.doi.org/10.1021/jp408722x.

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20

Grineva, O. V., V. I. Zhuravlev, and N. V. Lifanova. "Densities and Dielectric Permittivities of Four Polyhydric Alcohols." Journal of Chemical & Engineering Data 41, no. 2 (1996): 155–57. http://dx.doi.org/10.1021/je950076o.

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21

Kojima, Seiji. "Thermal and dielectric dispersions of supercooled polyhydric alcohols." Ferroelectrics 137, no. 1 (1992): 315–23. http://dx.doi.org/10.1080/00150199208015962.

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22

Kurimoto, Yasuji, Shuichi Doi, and Yasuo Tamura. "Species Effects on Wood-Liquefaction in Polyhydric Alcohols." Holzforschung 53, no. 6 (1999): 617–22. http://dx.doi.org/10.1515/hf.1999.102.

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Summary Four softwood and three hardwood species were liquefied using polyethylene glycol (PEG) or glycerol-containing PEG solvent systems as liquefaction reagents under defined reaction conditions: wood / liquefaction reagent / sulfuric acid = 3.00/9.00/0.27 gram, at 150 °C. The percentage residues and hydroxyl numbers were determined as an estimate of polyol value of the solution. The PEG system yielded 10–30% residual materials even under the best reaction conditions since low -OH group content resulted to re-condensation of liquefied wood (LW). The hydroxyl numbers linearly decreased from 210 to 100 mg KOH/g on extended (150 min) reaction time. On the other hand, addition of 10% glycerol to the PEG system resulted in small amount of unliquefied residues (~ 3%) and a stable hydroxyl number, regardless of the wood species tested. In case of 60 min reaction time, the mean residue value was 5.8% and a corresponding mean hydroxyl number of 216.1 mg KOH/g was obtained. This system is deemed suitable for liquefaction of a wide variety of wood species.

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23

Slushkov, A. M., B. I. Petrov, and G. A. Domrachev. "Reactions of bisarene organochromium compounds with polyhydric alcohols." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 34, no. 6 (1985): 1295–97. http://dx.doi.org/10.1007/bf00956106.

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24

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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25

Elbrus Mammadov, Sevinj Guliyeva, Elbrus Mammadov, Sevinj Guliyeva. "UNUSUAL TRANSFORMATIONS OF 2,3- AND 1,3- BUTHANEDIOL MONOPROPARGYL ETHERS." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 46, no. 11 (2024): 94–102. https://doi.org/10.36962/pahtei46112024-11.

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Research in the field of chemistry of oxygen-containing derivatives of acetylene has acquired considerable interest. Of the simple ethers containing a triple carbon-carbon bond, ethynyl and propargyl ethers of monohydric alcohols and phenols, as well as alkyl and aryl ethers of acetylene glycols have been studied in most detail. Alkynyl, especially propargyl mono- and diesters of polyhydric alcohols have not been studied extensively. Due to the presence of highly reactive centers, ethers occupy a special place in the field of chemistry of oxygen-containing derivatives of acetylenes. Acetylene ethers of glycols usually form ketoxy esters under conditions of acid-catalytic hydration. Using the tendency of propargyl compounds to prototropy in a basic medium, we studied under these conditions the possibility of converting monopropargyl ethers of 2,3- and 1,3-butanediols into oxygen-containing heterocycles. The available data indicate that these types of triple-bonded ethers are of great interest, both theoretically and practically. Among acetylenic ethers of polyhydric alcohols, which are the most interesting class of oxygen-containing alkynes in terms of synthesis and practice, propargyl ethers of acyclic glycols have been studied. In this regard, we have undertaken an experimental study of the synthesis routes of mono- and dipropargyl ethers of glycols and their unusual transformations. Acetylene ethers have proven themselves to be very valuable substances used in various fields of organic synthesis and exhibiting interesting properties of applied nature. Propargyl mono- and diesters of polyhydric alcohols with a triple bond are of great interest, both theoretically and practically. The paper presents the results of a study of acid-catalytic intramolecular cyclohydration and the synthesis of heterocyclic compounds based on propargyl ethers of glycols. The latter were monopropargyl ethers of 2,3- and 1,3-butanediols (I, II). The structure of the obtained heterocyclic compounds was confirmed by NMR and IR absorption spectra. Keywords: cyclohydration, monopropargyl ethers, heterocyclization, butanediols, spectrum, dioxane, t-BuO, NaOH.

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26

Yang, Xin Hui, Yuan Bo Huang, Zhi Feng Zheng, and Ya Dong Zhang. "Liquefaction of Cornstalk in the Presence of Polyhydric Alcohols." Advanced Materials Research 236-238 (May 2011): 341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.341.

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The liquefaction of cornstalk in the presence of polyhydric alcohols with sulfuric acid as catalyst was investigated. Effects of various liquefaction condition parameters on the liquefaction and its liquefied products were mainly investigated. Results showed that the liquefaction parameters had an obvious effect on the residue percent and the viscosity, acid and hydroxyl number of its liquefied products. The efficient liquefaction of cornstalk with low residue percent of 9.4% was obtained under the mild condition of a PEG #400/glycerin ratio of 7/3, a cornstalk/liquefaction reagent ratio of 1/5, a reaction temperature of 150°C, a reaction time of 30 min and a sulfuric acid amount of 4%, respectively. Under this condition, the viscosity, acid number and hydroxyl number of its liquefied products was 1430 cP, 18.5 mg KOH/g and 362.1 mg KOH/g, respectively.

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27

Zhuravlev, V. I., and T. M. Usacheva. "Novel approach to relaxation data analysis in polyhydric alcohols." Moscow University Chemistry Bulletin 66, no. 6 (2011): 333–39. http://dx.doi.org/10.3103/s0027131411060113.

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28

Toniolo, C., G. M. Bonora, and A. Fontana. "POLYHYDRIC ALCOHOLS: STUCTURE-SUPPORTING SOLVENTS FOR POLYPEPTIDES AND PROTEINS." International Journal of Peptide and Protein Research 6, no. 5 (2009): 283–85. http://dx.doi.org/10.1111/j.1399-3011.1974.tb02386.x.

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29

Zheng, Zhi Feng, Hui Pan, Yuan Bo Huang, and Y. Hse Chung. "Bio-Based Rigid Polyurethane Foam from Liquefied Products of Wood in the Presence of Polyhydric Alcohols." Advanced Materials Research 168-170 (December 2010): 1281–84. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.1281.

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Rigid polyurethane foams were prepared from the liquefied wood polyols, which was obtained by the liquefaction of southern pine wood in the presence of polyhydric alcohols with sulfuric acid catalyst by using microwave-assistant as an energy source. The properties of liquefied biomass-based polyols and the rigid polyurethane foams were investigated. The results indicated that the foams exhibited excellent mechanical properties.

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30

A., K. Nugmanov, and K. Dashdiyeva T. "INFLUENCE WETTABILITY OF THE SURFACTANTS ON THE EFFICIENCY OF "IKHLAS" NANODEMULSIFIERS FOR CLEANING OF PRODUCED WATERS FROM THE HYDROCARBONS IN THE CONDITIONS PRIMARY PREPARATION OF OIL." International Journal of Advanced Trends in Engineering and Technology 4, no. 1 (2019): 11–17. https://doi.org/10.5281/zenodo.2923865.

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The article discusses the features of the synergistic effect of the compositions of nanodemulsifiers in the purification of oil from water and water from oil. Synergy is caused by the composition of non-ionic surfactants of ethoxylated esters of n-aliphatic acids and the block of copolymers of oxyalkylene esters with polyhydric alcohols. Theoretical predictions for synergistic compositions were confirmed by laboratory results.

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31

Onishi, Nobuyuki, Mie Minagawa, Akihiko Tanioka, and Hidetoshi Matsumoto. "Current–Voltage Characteristics and Solvent Dissociation of Bipolar Membranes in Organic Solvents." Membranes 12, no. 12 (2022): 1236. http://dx.doi.org/10.3390/membranes12121236.

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In this work, the chronopotentiometric responses, pH changes, and current–voltage (I–V) characteristics of bipolar membrane (BPM)/LiCl–organic solvent systems were measured and compared with those of the BPM/LiCl–water system. Monohydric alcohols, polyhydric alcohols, and amides were used as organic solvents. The chronopotentiograms and pH changes supported that the organic solvents can dissociate into cations and anions at the BPM interface. It is found that amides cannot dissociate easily at the BPM compared with alcohols. The I–V characteristics showed that both the viscosity and acid–base property of organic solvents substantially influences the dissociation behaviors in addition to the autoprotolysis constant and relative permittivity of the solvents.

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32

Niu, Min, Guang-jie Zhao, and Mehmet Hakki Alma. "Thermogravimetric studies on condensed wood residues in polyhydric alcohols liquefaction." BioResources 6, no. 1 (2011): 615–30. http://dx.doi.org/10.15376/biores.6.1.615-630.

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To further clarify reasons for formation of condensed residues during the last stage of wood liquefaction in the medium of polyhydric alcohols and sulfuric acid catalyst, the weight loss behaviors and thermal reaction kinetics of condensed residues were studied by thermogravimetric analysis (TGA). Simultaneously, chemical methods were used to analyze the contents of lignin, cellulose, and holocellulose in the condensed residues. For all the unliquefied wood residues, the contents of cellulose decreased, and the residual ratios after TGA pyrolysis and the contents of lignin increased as a function of liquefaction time. Moreover, the highest weight loss rate went gradually to the higher temperature region after the liquefaction time and heating rate were extended. The values for apparent activation energy were lower at 150 minutes and 180 minutes and higher at 25 minutes. Liquefaction time had a smaller effect on the pyrolysis mechanism, as revealed by TGA. In conclusion, the thermal stabilities of condensed residues were higher than those of decomposed residues and wood. The condensation reaction occurred mainly during wood liquefaction, and condensed residues resulted possibly from mutual reaction among small molecules from decomposed lignin.

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33

Xiyuan, Hua, Song Hongyan, and Hu Guanjian. "THE EFFECT OF POLYHYDRIC ALCOHOLS ON O/W TYPE MICROEMULSION." Acta Physico-Chimica Sinica 1, no. 05 (1985): 482–86. http://dx.doi.org/10.3866/pku.whxb19850514.

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34

Isaeva, E. I., S. N. Kiryukhina, and V. V. Gorbunova. "Photochemical synthesis of silver and gold nanoparticles in polyhydric alcohols." Russian Journal of General Chemistry 83, no. 4 (2013): 619–23. http://dx.doi.org/10.1134/s1070363213040014.

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35

Minoguchi, Ayumi, Toshiya Kaneko, Hajime Sotokawa, and Ryusuke Nozaki. "Dielectric relaxation processes in supercooled polyhydric alcohols and their mixtures." Journal of Non-Crystalline Solids 352, no. 42-49 (2006): 4742–45. http://dx.doi.org/10.1016/j.jnoncrysol.2006.04.026.

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36

Tonkonogov, B. P., L. N. Bagdasarov, S. V. Lopata, and V. V. Osechkin. "Detergent Action of Esters of Polyhydric Alcohols in Engine Oils." Chemistry and Technology of Fuels and Oils 51, no. 5 (2015): 526–28. http://dx.doi.org/10.1007/s10553-015-0634-5.

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37

Benson, D. K., R. W. Burrows, and J. D. Webb. "Solid state phase transitions in pentaerythritol and related polyhydric alcohols." Solar Energy Materials 13, no. 2 (1986): 133–52. http://dx.doi.org/10.1016/0165-1633(86)90040-7.

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38

Banait, J. S., and P. K. Pahil. "Electrochemical reactions of some polyhydric alcohols at a copper anode." Polyhedron 5, no. 11 (1986): 1865–66. http://dx.doi.org/10.1016/s0277-5387(00)84869-x.

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39

Mitra, N. K., U. Das, and T. K. Parya. "Rheological Behaviour of Bentonite Suspension in Presence of Polyhydric Alcohols." Transactions of the Indian Ceramic Society 58, no. 1 (1999): 15–18. http://dx.doi.org/10.1080/0371750x.1999.10799849.

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40

Yan, Yongbin, Mingming Hu, and Zhihua Wang. "Kinetic study on the liquefaction of cornstalk in polyhydric alcohols." Industrial Crops and Products 32, no. 3 (2010): 349–52. http://dx.doi.org/10.1016/j.indcrop.2010.05.015.

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41

Shantha, K. L., and N. Krishnamurti. "Synthesis, characterization, and utilization of methacrylic esters of polyhydric alcohols." Journal of Applied Polymer Science 37, no. 10 (1989): 2987–3002. http://dx.doi.org/10.1002/app.1989.070371016.

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42

Ke, Jia-Jun, and Chen Wang. "Kinetics of PbO2 leaching in alkaline solutions containing polyhydric alcohols." Hydrometallurgy 21, no. 2 (1988): 223–34. http://dx.doi.org/10.1016/0304-386x(88)90007-2.

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43

Sheila, Srivastava, Srivastava Parul, Gupta Vandana, and Jaiswal Arti. "Homogeneous catalytic oxidation of some polyhydric alcohols by iridium trichloride." Chemistry International 3, no. 1 (2017): 19–24. https://doi.org/10.5281/zenodo.1473046.

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The kinetic investigation for catalyzed oxidation of D-sorbitol and glycerol using in Ir(III) in an acidified solution of NBS in the presence of Hg(OAc)2 as a scavenger for bromide ion has been carried out in the temperature range of 300 - 450 C. First order kinetics in the lower NBS concentration range tended to zero order at higher concentration. Increase in concentration of Cl- and H+ ion showed fractional inverse order while the order of reaction w.r.t. substrate was zero. Negligible effect of Hg(OAc)2 and ionic strength of the medium was observed. A suitable mechanism in conformity with the kinetic observations has been proposed and the various activation parameters have been calculated.

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44

Lin, Hai Yan, Yong Fu Yang, and Yu Jiang Wang. "Study on Grinding Aids of Different Organic Group." Advanced Materials Research 476-478 (February 2012): 1702–8. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1702.

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Organic substances containing hydroxyl group and alcohol amine group were chosen in this paper and the effects of different organic group on powder properties and physical performance of cement pastes were studied using various methods of analysis, such as particle size analysis, fluidness analysis and XRD. The results show that monohydric alcohols have a neglectable aid-grinding effect. For Polyhydric alcohols and ethanol amine, the absorption capacity of the hydroxyl group or amido on the surface of the powder may increase in relation to the increase in groups, which can increase fineness but cannot improve the fluidity. For Diethanolamine and Triethanolamine, the absorption on the powder mainly depends on the hydroxyl group, but the amido has a strong electrostatic repulsive force, so the dispersion of the powder not only comes from high steric hindrance effect, but also the electrostatic repulsive force, which can improve the powder’s dispersity, reduce sieve residue and increase the fluidity. This research paper provides a theoretical guide for the application of grinding aids.

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Hu, Yong, Ting Mei, Libo Wang, and Haisheng Qian. "A Facile and Generic Strategy to Synthesize Large-Scale Carbon Nanotubes." Journal of Nanomaterials 2010 (2010): 1–5. http://dx.doi.org/10.1155/2010/415940.

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An easy method to prepare carbon nanotubes (CNTs) has been demonstrated using a two-step refluxing and calcination process. First, a readily available inorganic salt,Ni(NO3)2⋅6H2O, used as the catalyst precursor was dissolved in the high-boiling-point organic solvents (alcohols or polyhydric alcohol) by refluxing at190∘Cfor 3 hours. After refluxing, NiO nanoparticles obtained in the solution act as the catalyst, and the organic refluxing solvents are used as the carbon source for the growth of CNTs. Second, CNTs are prepared by calcining the refluxed solution at800∘Cin anN2atmosphere for 3 hours. Results show that CNT growth possibly originates from carbon rings, with the nanotube walls growing perpendicular to these rings and forming a closed tube at the end.

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Glazunov, A. M., A. G. Mozyrev, S. P. Semuhin, and E. O. Zemlyanskiy. "Polycondensation depressor additives for oil products using higher fat alcohols." Oil and Gas Studies, no. 5 (November 17, 2019): 125–31. http://dx.doi.org/10.31660/0445-0108-2019-5-125-131.

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There are polycondensation ester depressant additives, obtained by the condensation of polyhydric alcohols, synthetic fatty acids and dicarboxylic acids. The effectiveness of such additives is limited to oils and petroleum products containing high melting solid hydrocarbons. Such additives are not effective in diesel fuels. Therefore, it was of interest to synthesize condensation ester depressor additives with a different combination of starting materials. We used pyromellitic dianhydride (it is a product derived from polyhydric acid) as a base, also higher fatty alcohols as substances that add additives to the surface-active properties and solubility in oils and petroleum products, and glycols, for example ethylene glycol, as substances that regulate the molecular weight of additives. Depressor additives were synthesized by condensation of higher fatty alcohols fractions C10 – C20 and pyromellitic dianhydride with the subsequent introduction of ethylene glycol into the structure of additives. We evaluated the depressor properties of the additives when they were introduced into the diesel component of the Surgut condensate stabilization plant. Additives were considered all the more effective, the higher the depression of the pour point of the oil in their presence and the lower their consumption. We introduced into the diesel component of the Surgut condensate stabilization plant, and then evaluated their properties. The higher the depression of the pour point of the oil when using depressor additives and the lower their consumption, the additives were considered more effective. Taking into account the simplicity of the technology, waste-free production and sufficiently high efficiency, we can recommend the depressor additives synthesized in the study to reduce the solidification temperature of diesel fuels.

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Zhang, Ning, Jing Wang, Wen Zhang, et al. "Self-supported PdNi dendrite on Ni foam for improving monohydric alcohol and polyhydric alcohols electrooxidation." Fuel 326 (October 2022): 125083. http://dx.doi.org/10.1016/j.fuel.2022.125083.

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Mezhevoi, I. N., and V. G. Badelin. "Thermochemical study of glycylglycine interaction with polyhydric alcohols in aqueous solution." Russian Journal of General Chemistry 85, no. 4 (2015): 816–19. http://dx.doi.org/10.1134/s1070363215040076.

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Qi, Gaoxiang, Hairong Zhang, Chao Huang, et al. "Liquefaction and characterization of residue of oleaginous yeast in polyhydric alcohols." Korean Journal of Chemical Engineering 33, no. 10 (2016): 2858–62. http://dx.doi.org/10.1007/s11814-016-0122-6.

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Wei, Jiang, Li Jinfeng, Li Ziyuan, Chen Jie, and Zhang Xiaoyan. "Preparation and Study of Properties of Polyhydric Alcohols Biphosphate Ethanolamine Salt." IOP Conference Series: Materials Science and Engineering 740 (March 17, 2020): 012061. http://dx.doi.org/10.1088/1757-899x/740/1/012061.

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