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Journal articles on the topic 'Hydroxypropyl cellulose'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Sroková, Iva, Gabriel Čík, and Pavel Hodul. "A Study of Mesomorphous Properties of O-(2-Hydroxypropyl)cellulose Derivatives." Collection of Czechoslovak Chemical Communications 59, no. 5 (1994): 1096–99. http://dx.doi.org/10.1135/cccc19941096.

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O-(2-Hydroxypropyl)cellulose has been used for synthesis of O-decyl-O-(2-hydroxypropyl)cellulose (DHPC; DS = 2.2) and O-stearoyl-O-(2-hydroxypropyl)cellulose (SHPC; DS = 2.1). Both compounds show mesomorphous properties of liquid polymeric crystals. DHPC in the form of highly viscous liquid has a lyotropic character. SHPC as solid has thermotropic properties with two phase transitions in the interval of 40 - 70 °C.

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2

Liu, Xiao Zhen, Ju Hua Yang, Zhong Fang Lai, Ling Ling Guo, Ling Ling Song, and Ya Qin Bi. "Preparation of Controlled-Release Tablets of Sasanquasaponin." Advanced Materials Research 396-398 (November 2011): 1684–87. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.1684.

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he controlled-release tablets of sasanquasaponin (SQS) were prepared by using SQS, hydroxypropyl methyl cellulose, ethylcellulose and lactose as the main drug, skeleton material and fillers, respectively. The effects of the dosage of hydroxypropyl methyl cellulose and ethylcellulose on release rate were studied. The release rate curve of the data of the prescription of the controlled-release tablets of SQS were fitted as zero order, one order and Higuchi equation. The release rate of the controlled-release tablets of SQS were controlled by controlling the dosage of hydroxypropyl methyl cellulo

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3

Lubczak, Renata, Małgorzata Kus-Liśkiewicz, Jacek Lubczak, Marzena Szpiłyk, Daniel Broda, and Ewa Bobko. "Biodegradable Polyurethane Foams Based on Polyols Obtained from Cellulose and Its Hydroxypropyl Derivative." Materials 17, no. 22 (2024): 5490. http://dx.doi.org/10.3390/ma17225490.

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Three methods of cellulose-derived polyol synthesis were elaborated. The suitable substrates were (hydroxypropyl)cellulose or cellulose, which were hydroxyalkylated in reactions with glycidol and ethylene carbonate in triethylene glycol or in water. The products were characterized by IR, 1H NMR, and MALDI ToF spectroscopies. For all polyols, IR spectra showed strong bands at 1060 cm−1 from the ether group formed upon the ring opening of GL and EC. The polyol obtained from (hydroxypropyl)cellulose in the triethylene glycol solvent was accompanied by oligomeric products of glycol hydroxyalkylati

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4

Lebedev, Volodymyr, Denis Miroshnichenko, Serhiy Pyshyev, and Ananiy Kohut. "Study of Hybrid Humic Acids Modification of Environmentally Safe Biodegradable Films Based on Hydroxypropyl Methyl Cellulose." Chemistry & Chemical Technology 17, no. 2 (2023): 357–64. http://dx.doi.org/10.23939/chcht17.02.357.

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The possibility of increasing the strength and operational properties of ecologically safe biodegradable polymeric materials based on hydroxypropyl methyl cellulose by using its modification with the different types of humic acids (HAs) from lignite is considered. Hybrid ecologically safe high-strength films with antibacterial properties were obtained for the first time. Physicochemical studies and IR spectroscopy confirmed the development of hybrid structures of hydroxypropyl methyl cellulose, modified with the different types of HAs. Changes in water absorption, tensile strength, relative el

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5

Sugawa, Hikaru, Yui Kimbara, and Sadahito Uto. "Color Control of Hydroxypropyl Cellulose." Molecular Crystals and Liquid Crystals 613, no. 1 (2015): 156–62. http://dx.doi.org/10.1080/15421406.2015.1032720.

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6

Gangurde, Avinash B., Suhas K. Khairnar, and Vinod A. Bairag. "HYDROXYPROPYL CELLULOSE-CARBOPOL AND HYDROXYPROPYL CELLULOSE -NOVEON COMPOSITE MOUTH DISSOLVING FILMS OF AMBROXOL HYDROCHLORIDE." INDIAN DRUGS 60, no. 08 (2023): 56–62. http://dx.doi.org/10.53879/id.60.08.13041.

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Ambroxol hydrochloride is a choice of drug in acute and chronic lung infections. In the COVID-19 situation, ambroxol played a crucial role in treating bronchitis and potentiating, the effect of antibiotics in lung infections. In the present study, a patient-friendly drug delivery system of ambroxol hydrochloride was prepared by solvent casting method to produce better mechanical strength in the film. To impart better mechanical strength without affecting disintegration and dissolution, composite films of hydroxypropyl cellulose - Carbopol-981NF and hydroxypropyl cellulose – Noveon-AA1 were dev

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7

Walters, Christopher M., Charlotte E. Boott, Thanh-Dinh Nguyen, Wadood Y. Hamad, and Mark J. MacLachlan. "Iridescent Cellulose Nanocrystal Films Modified with Hydroxypropyl Cellulose." Biomacromolecules 21, no. 3 (2020): 1295–302. http://dx.doi.org/10.1021/acs.biomac.0c00056.

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8

Alekseev, O. M., Yu F. Zabashta, V. I. Kovalchuk, M. M. Lazarenko, and L. A. Bulavin. "The Structure of Polymer Clusters in Aqueous Solutions of Hydroxypropyl Cellulose." Ukrainian Journal of Physics 64, no. 3 (2019): 238. http://dx.doi.org/10.15407/ujpe64.3.238.

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The viscosity, turbidity, and heat capacity of dilute aqueous solutions of hydroxypropyl cellulose have been studied in a concentration interval of 0.047–1.5 g/l and a temperature interval of 20–80 ∘C. The data obtained testify that, if the temperature does not exceed 40 ∘C, hydroxypropyl cellulose molecules are prolate spheroidal globules with semiaxis lengths of 7 and 490 ˚ A. At temperatures above 70 ∘C, the hydroxypropyl cellulose solution consists of clusters; every cluster is composed of 11 globules and has a prolate spheroidal form with semiaxes of 41 and 490 ˚ A. In the temperature int

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9

Vijay, R. Chakote* Mrunal K. Shirsat Deepak A. Joshi Mayuri M. Ban Gunesh N. Dhembre. "DESIGN AND DEVELOPMENT OF MATRIX TABLET OF LABETALOL HCL BY USING TAMARIND SEED POLYSACCHARIDE AS POLYMER." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 02 (2018): 805–14. https://doi.org/10.5281/zenodo.1174319.

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The objective of present work was to design and develop sustained release matrix tablets of anti-hypertensive drug Labetalol hydrochloride. Hydroxypropyl methyl cellulose K15, Sodium CMC, Xanthan gum and Tamarind seed polysaccharide used as a rate retarding polymer. Whereas Polyvinyl Pyrrolidone and Microcrystalline cellulose are used as granulating agent and diluent. The influence of variable concentration of polymers on the release rate of drug was investigated. The results of the present work point out that the rate of Labetalol hydrochloride release from polymers like Hydroxypropyl methyl

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10

Zhou, Shu-Chun, Heng-Lin Lv, Ning Li, and Jie Zhang. "Effects of Chemical Admixtures on the Working and Mechanical Properties of Ordinary Dry-Mixed Mortar." Advances in Materials Science and Engineering 2019 (January 22, 2019): 1–10. http://dx.doi.org/10.1155/2019/5978089.

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The effects of hydroxypropyl methyl cellulose ether, starch ether, bentonite, and redispersion emulsoid powder on the working and mechanical properties of fresh dry-mixed mortar were studied. The results show that hydroxypropyl methyl cellulose ether has the greatest impact on the consistency and water retention of ordinary dry-mixed mortar and that redispersion emulsoid powder reduces the water action and starch ether has essentially no effect on water retention. It also shows that the time of mortar condensation when mixed with hydroxypropyl methyl cellulose ether is the longest, followed by

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11

Olijnyk, Liliana, Volodymyr Starchevski, and Volodymyr Kyslenko. "Mathematical model of rheological behavior of silica suspension in hydroxypropyl methyl cellulose solution." Chemistry & Chemical Technology 1, no. 3 (2007): 121–25. http://dx.doi.org/10.23939/chcht01.03.121.

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A mathematical model of rheological behavior of silica suspension in hydroxypropyl methyl cellulose solution was investigated. The model takes into account the friction between particle aggregates, particle aggregates and macromolecules in solution and between macromolecules in solution as well as the formation of well ordered layers contained solid particles, adsorbed macromolecules and macromolecules in the holes between particles in aggregates at the large shear rates. Suggested model allows to describe the rheological behavior of silica suspensions in water solution of hydroxypropyl methyl

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12

RAGAB E., ABOU-ZEID, NAHLA A. EL-WAKIL, AHMED ELGENDY, YEHIA FAHMY, and ALAIN DUFRESNE. "LIQUID CRYSTALLINE PROPERTIES OF HYDROXYPROPYL CELLULOSE PREPARED FROM DISSOLVED EGYPTIAN BAGASSE PULP." Cellulose Chemistry and Technology 55, no. 1-2 (2021): 13–22. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.02.

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"Egyptian agricultural wastes were used for preparing advanced cellulosic derivatives possessing liquid crystalline properties. Cellulose was successfully isolated in pure form from Egyptian bagasse pulp. Hydroxypropylation was carried out on the obtained cellulose and the liquid crystalline properties were investigated. The prepared hydroxypropyl cellulose (HPC) was esterified with 4-alkyloxybenzoic acids, giving products with liquid crystalline properties. The molecular structure of HPC and a series of its esters – 4-alkoxybenzoloxypropyl cellulose (ABPC-m) – was confirmed by Fourier transfo

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13

Bertolino, Vanessa, Giuseppe Cavallaro, Stefana Milioto, Filippo Parisi, and Giuseppe Lazzara. "Thermal Properties of Multilayer Nanocomposites Based on Halloysite Nanotubes and Biopolymers." Journal of Composites Science 2, no. 3 (2018): 41. http://dx.doi.org/10.3390/jcs2030041.

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This paper reports a novel procedure to fabricate multilayer composite biofilms based on halloysite nanotubes (HNTs) and sustainable polymers. Among the biopolymers, the non-ionic (hydroxypropyl cellulose) and cationic (chitosan) molecules were selected. The nanocomposites were prepared by the sequential casting of ethanol solutions of hydroxypropyl cellulose and aqueous dispersions of chitosan/HNTs. The composition of the bio-nanocomposites was systematically changed in order to investigate the effect of the hydroxypropyl cellulose/HNTs ratio on the thermal properties of the films, which were

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14

Xie, Mingzhen, Junjie Chen, Tiantian Zhang, and Xiaohang Sun. "Angle-independent cellulosic photonic crystals for smart and sustainable colorimetric sensing." BioResources 18, no. 4 (2023): 6731–33. http://dx.doi.org/10.15376/biores.18.4.6731-6733.

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Cellulose nanocrystals, as well as hydroxypropyl cellulose, can form lyotropic liquid crystals, which can be processed into pigments or glitter products for sustainable coloration. Some stimuli-responsive polymers or nanoparticles are expected to form colorimetric sensors via co-assembly with these cellulosic photonic crystals. The co-assembly behavior of CNCs with polymers is determined by the hydrogen bonds and physical adsorption. Thus, adjusting the molecular chain structure, hydrophilicity, and electrostatic interaction of co-assembled polymers can lead to flexible and tunable colorimetri

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15

Yapa, Mehmet-Talha, Jacques Lalevée, and Marie-Pierre Laborie. "Towards Photocrosslinkable Lyotropic Blends of Organosolv Lignin and Hydroxypropyl Cellulose for 3D Printing by Direct Ink Writing." Polymers 16, no. 20 (2024): 2869. http://dx.doi.org/10.3390/polym16202869.

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Polymer blends containing up to 70% organosolv lignin content and lyotropic cellulose derivatives have been established as “lignin inks” for direct ink writing of fully biobased 3D parts. However, a fast-crosslinking mechanism is needed to improve throughput and design space. In this paper, UV-photocrosslinkable organosolv lignin/hydroxypropyl cellulose inks are formulated through doping with common photocrosslinkers. The most potent photocrosslinkers for neat hydroxypropyl cellulose, lignin and their blends are determined through a series of DOEs. Hydroxypropyl cellulose is significantly more

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16

Chen, Chun-tao, Yang Huang, Chun-lin Zhu, Ying Nie, Jia-zhi Yang, and Dong-ping Sun. "Synthesis and characterization of hydroxypropyl cellulose from bacterial cellulose." Chinese Journal of Polymer Science 32, no. 4 (2014): 439–48. http://dx.doi.org/10.1007/s10118-014-1419-8.

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17

Baron, Raluca Ioana, Gabriela Biliuta, Ana-Maria Macsim, Maria Valentina Dinu, and Sergiu Coseri. "Chemistry of Hydroxypropyl Cellulose Oxidized by Two Selective Oxidants." Polymers 15, no. 19 (2023): 3930. http://dx.doi.org/10.3390/polym15193930.

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Along with the increased usage of cellulose in the manufacture of novel materials, those of its derivatives that have good solubility in water or organic solvents have become increasingly important. In this study, hydroxypropyl cellulose (HPC), a cellulosic derivative with distinct features, was utilized to investigate how two of the most-selective oxidation methods currently available in the literature act on the constituent OH groups of both the side chain and the anhydroglycosidic unit in HPC. The oxidation reactions were carried out first using TEMPO, sodium hypochlorite, and sodium bromid

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18

Cao, Hua, Huifang Chen, Jianhua Yi, Hong Xia, and Yang Nie. "Microencapsulation and Its Characteristics and Applications and Manufacturing of Clarithromycin Microcapsules with Mixed Membrane." E3S Web of Conferences 185 (2020): 04020. http://dx.doi.org/10.1051/e3sconf/202018504020.

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In this paper, the definition, characteristics, applications, wall materials and main preparation methods of microcapsules were described in details. At the same time, the mixed membrane microcapsules were prepared by solvent evaporation method with clarithromycin as model drug, ethyl cellulose and hydroxypropyl methyl cellulose as membrane materials. The optimal preparation conditions were explored, and the slow and controlled release properties of the mixed membrane microcapsules were investigated. The optimal preparation conditions of clarithromycin microcapsules were as following: the conc

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19

Heitfeld, Kevin A., Tingtai Guo, George Yang, and Dale W. Schaefer. "Temperature responsive hydroxypropyl cellulose for encapsulation." Materials Science and Engineering: C 28, no. 3 (2008): 374–79. http://dx.doi.org/10.1016/j.msec.2007.04.012.

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20

Lim, Woo-Sub, Jae-Wook Choi, Yusaku Iwata, and Hiroshi Koseki. "Thermal characteristics of Hydroxypropyl Methyl Cellulose." Journal of Loss Prevention in the Process Industries 22, no. 2 (2009): 182–86. http://dx.doi.org/10.1016/j.jlp.2008.11.003.

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21

Moreton-Shabirin, Ainoon, and Hayder A Abdulbari. "Comparative study on viscosity and drag reducing performance between hydroxypropyl cellulose and hydroxypropyl cellulose-surfactant mixture." International Journal of Engineering & Technology 7, no. 4 (2019): 5120–26. http://dx.doi.org/10.14419/ijet.v7i4.26017.

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Ammonium Chloride (BZK) was found to enhance the drag reduction performance of a semi-rigid polymer Hydroxypropyl cellulose (HPC) in turbulent pipe flow. Rheology test showed that HPCâ€™s viscosity was higher than that of HPC-BZK mixture, and this showed that the presence of BZK had weakened the intermolecular strength of HPC molecules. Pressure-drop measurements indicated that HPCâ€™s and HPC-BZK mixtureâ€™s drag reducing performance are (a) dependent on Reynolds number, and these mildly enhanced in the presence of BZK and (b) weakly dependent on additives concentration. Both HPC and HPC-BZK

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22

Kulichikhin, V. G., V. V. Makarova, M. Yu Tolstykh, S. J. Picken, and E. Mendes. "Structural evolution of liquid-crystalline solutions of hydroxypropyl cellulose and hydroxypropyl cellulose-based nanocomposites during flow." Polymer Science Series A 53, no. 9 (2011): 748–64. http://dx.doi.org/10.1134/s0965545x11090070.

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23

Abdel-Halim, E. S., H. E. Emam, and M. H. El-Rafie. "Utilization of hydroxypropyl cellulose and poly(acrylic acid)-hydroxypropyl cellulose composite as thickeners for textile printing." Carbohydrate Polymers 74, no. 4 (2008): 938–41. http://dx.doi.org/10.1016/j.carbpol.2008.05.013.

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24

Jo, Yu-Jeong, Hye-Jung Cho, Sang-Jin Chun, and Sun-Young Lee. "Mechanical and Thermal Properties of Hydroxypropyl Cellulose/TEMPO-oxidized Cellulose Nanofibril Composite Films." Journal of the Korean Wood Science and Technology 43, no. 6 (2015): 740–45. http://dx.doi.org/10.5658/wood.2015.43.6.740.

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25

Arai, Kengo, Yoshiki Horikawa, Toshiyuki Shikata, and Hiroki Iwase. "Reconsideration of the conformation of methyl cellulose and hydroxypropyl methyl cellulose ethers in aqueous solution." RSC Advances 10, no. 32 (2020): 19059–66. http://dx.doi.org/10.1039/d0ra03437a.

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26

Correia, Daniela M., Erlantz Lizundia, Rafaela M. Meira, Mikel Rincón-Iglesias, and Senentxu Lanceros-Méndez. "Cellulose Nanocrystal and Water-Soluble Cellulose Derivative Based Electromechanical Bending Actuators." Materials 13, no. 10 (2020): 2294. http://dx.doi.org/10.3390/ma13102294.

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This study reports a versatile method for the development of cellulose nanocrystals (CNCs) and water-soluble cellulose derivatives (methyl cellulose (MC), hydroxypropyl cellulose (HPC), and sodium carboxymethyl cellulose (NaCMC)) films comprising the ionic liquid (IL) 2-hydroxy-ethyl-trimethylammonium dihydrogen phosphate ([Ch][DHP]) for actuator fabrication. The influence of the IL content on the morphology and physico–chemical properties of free-standing composite films was evaluated. Independently of the cellulose derivative, the ductility of the films increases upon [Ch][DHP] incorporation

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27

Saraiva, Diogo V., Ricardo Chagas, Beatriz M. de Abreu, et al. "Flexible and Structural Coloured Composite Films from Cellulose Nanocrystals/Hydroxypropyl Cellulose Lyotropic Suspensions." Crystals 10, no. 2 (2020): 122. http://dx.doi.org/10.3390/cryst10020122.

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Lyotropic colloidal aqueous suspensions of cellulose nanocrystals (CNCs) can, after solvent evaporation, retain their chiral nematic arrangement. As water is removed the pitch value of the suspension decreases and structural colour-generating films, which are mechanically brittle in nature, can be obtained. Increasing their flexibility while keeping the chiral nematic structure and biocompatible nature is a challenging task. However, if achievable, this will promote their use in new and interesting applications. In this study, we report on the addition of different amounts of hydroxypropyl cel

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28

Eyholzer, Ch, F. Lopez-Suevos, P. Tingaut, T. Zimmermann, and K. Oksman. "Reinforcing effect of carboxymethylated nanofibrillated cellulose powder on hydroxypropyl cellulose." Cellulose 17, no. 4 (2010): 793–802. http://dx.doi.org/10.1007/s10570-010-9423-9.

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29

Ma, Lin, Lili Wang, Lixin Wu, Dongxian Zhuo, Zixiang Weng, and Rongrong Ren. "Cellulosic nanocomposite membranes from hydroxypropyl cellulose reinforced by cellulose nanocrystals." Cellulose 21, no. 6 (2014): 4443–54. http://dx.doi.org/10.1007/s10570-014-0405-1.

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30

Dong, Yifan, Laura I. Mosquera-Giraldo, Jacob Troutman, Brittny Skogstad, Lynne S. Taylor, and Kevin J. Edgar. "Amphiphilic hydroxyalkyl cellulose derivatives for amorphous solid dispersion prepared by olefin cross-metathesis." Polymer Chemistry 7, no. 30 (2016): 4953–63. http://dx.doi.org/10.1039/c6py00960c.

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31

Hussin, Hazira, Seng Neon Gan, Sharifah Mohamad, and Sook Wai Phang. "Synthesis of Water-soluble Polyaniline by Using Different Types of Cellulose Derivatives." Polymers and Polymer Composites 25, no. 7 (2017): 515–20. http://dx.doi.org/10.1177/096739111702500702.

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Pure polyaniline (PAni) is insoluble in water. Water-soluble complexes of PAni with different of cellulose derivatives were successfully synthesized by using chemical oxidation polymerization of aniline in aqueous solution of cellulose derivatives. In this study, cellulose derivatives such as methylcellulose (MC), hydroxypropyl cellulose (HPC), and hydroxypropyl methylcellulose (HPMC) had been used as a steric stabilizer, aniline (Ani) as a monomer with hydrogen chloride (HCl) as an acidic dopant, and ammonium persulfate (APS) as an initiator. The chemical structure of PAni complexes were conf

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32

Dore, Camilla, Johann Osmond, and Agustín Mihi. "A water-processable cellulose-based resist for advanced nanofabrication." Nanoscale 10, no. 37 (2018): 17884–92. http://dx.doi.org/10.1039/c8nr04851g.

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33

Weißenborn, Eric, and Björn Braunschweig. "Hydroxypropyl cellulose as a green polymer for thermo-responsive aqueous foams." Soft Matter 15, no. 13 (2019): 2876–83. http://dx.doi.org/10.1039/c9sm00093c.

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34

Weißenborn, Eric, Jörn Droste, Michael Hardt, et al. "Light-induced switching of polymer-surfactant interactions enables controlled polymer thermoresponsive behaviour." Chemical Communications 57, no. 47 (2021): 5826–29. http://dx.doi.org/10.1039/d1cc02054d.

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35

Basta, Altaf H., Vivian F. Lotfy, Jehane A. Micky, and Aya M. Salem. "Cellulose Ether-Based Liquid Crystal Materials: Review Article." Journal of Research Updates in Polymer Science 10 (November 29, 2021): 69–83. http://dx.doi.org/10.6000/1929-5995.2021.10.9.

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The development of liquid crystal materials via nanotechnology has become an interesting subject of research in optical material chemistry. One of the significant nanomaterials is cellulose-based nanoparticles. In this review article, we highlighted the classification of liquid crystal materials (LCs), and types of cellulose-NPs and their characterization as LCs materials. Finally, we present our promising data on the synergistic effect of cellulose-NPs on liquid crystal behavior of ethyl cellulose- and hydroxypropyl cellulose- nanocomposites.

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36

Swingler, Sam, Abhishek Gupta, Hazel Gibson та ін. "Thymoquinone: Hydroxypropyl-β-cyclodextrin Loaded Bacterial Cellulose for the Management of Wounds". Pharmaceutics 14, № 12 (2022): 2816. http://dx.doi.org/10.3390/pharmaceutics14122816.

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The need for more advantageous and pharmaceutically active wound dressings is a pressing matter in the area of wound management. In this study, we explore the possibility of incorporating thymoquinone within bacterial cellulose, utilising cyclodextrins as a novel method of solubilising hydrophobic compounds. The thymoquinone was not soluble in water, so was incorporated within hydroxypropyl-β-cyclodextrin before use. Thymoquinone: hydroxypropyl-β-cyclodextrin inclusion complex produced was found to be soluble in water up to 7% (w/v) and was stable with no crystal formation for at least 7 days

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37

Matsuoka, Takuma, Kikuna Kumagai, and Hiroshi Nonaka. "Thermal extrusion of cellulose using hydroxypropyl methylcellulose." Cellulose 29, no. 5 (2022): 2975–83. http://dx.doi.org/10.1007/s10570-022-04463-3.

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38

Ernst, Benoit, and Patrick Navard. "Band textures in mesomorphic (hydroxypropyl) cellulose solutions." Macromolecules 22, no. 3 (1989): 1419–22. http://dx.doi.org/10.1021/ma00193a069.

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39

Peuvrel, Edith, and Patrick Navard. "Shear velocity profiles in hydroxypropyl cellulose solutions." Macromolecules 23, no. 22 (1990): 4874–75. http://dx.doi.org/10.1021/ma00224a018.

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40

Urtti, Arto, Markku Juslin, and Osmo Miinalainen. "Pilocarpine release from hydroxypropyl-cellulose-polyvinylpyrrolidone matrices." International Journal of Pharmaceutics 25, no. 2 (1985): 165–78. http://dx.doi.org/10.1016/0378-5173(85)90090-0.

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41

Bu, Z., and P. S. Russo. "Diffusion of Dextran in Aqueous (Hydroxypropyl)cellulose." Macromolecules 27, no. 5 (1994): 1187–94. http://dx.doi.org/10.1021/ma00083a017.

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42

Castro, Carlos, Ana Morales, Andreas Koschella, and Thomas Heinze. "Phase Behaviour of Hydroxypropyl Cellulose/ Polyacrylamide Gels." Macromolecular Symposia 296, no. 1 (2010): 429–35. http://dx.doi.org/10.1002/masy.201051058.

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43

Dileep, Kumar Awasthi, B. Puranik Sangamesh, Saraswat Rohit, Kumar Jhajharia Mahesh, and Sharma Prashant. "Design, Formulation Development and Evaluation of Matrix Tablet Containing Labetalol HCL." International Journal of Engineering Research & Science 6, no. 8 (2020): 05–14. https://doi.org/10.5281/zenodo.4090901.

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<strong>Abstract</strong><strong>—</strong> The objective of present work was to design and develop sustained release matrix tablets of anti-hypertensive drug Labetalol hydrochloride. Hydroxypropyl methyl cellulose K15, Sodium CMC, Xanthan gum and Tamarind seed polysaccharide used as a rate retarding polymer. Whereas Polyvinyl Pyrrolidone and Microcrystalline cellulose are used as granulating agent and diluent. The influence of variable concentration of polymers on the release rate of drug was investigated. The results of the present work point out that the rate of Labetalol hydrochlorid

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44

Onofrei, M. D., A. M. Dobos, I. Stoica, N. Olaru, L. Olaru, and S. Ioan. "Lyotropic Liquid Crystal Phases in Cellulose Acetate Phthalate/Hydroxypropyl Cellulose Blends." Journal of Polymers and the Environment 22, no. 1 (2013): 99–111. http://dx.doi.org/10.1007/s10924-013-0618-7.

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45

Dobos, Adina Maria, Mihaela-Dorina Onofrei, Iuliana Stoica, Niculae Olaru, Liliana Olaru, and Silvia Ioan. "Rheological properties and microstructures of cellulose acetate phthalate/hydroxypropyl cellulose blends." Polymer Composites 33, no. 11 (2012): 2072–83. http://dx.doi.org/10.1002/pc.22350.

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46

Wan, Tong, Li Ying Liu, Wei Zeng, and Yong Zhu. "Studies on Surface Hydroxypropylation and Swellability of Bacterial Cellulose." Advanced Materials Research 601 (December 2012): 12–15. http://dx.doi.org/10.4028/www.scientific.net/amr.601.12.

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Bacterial Cellulose (BC) consisting of hydrophobic ultra-ﬁne ﬁbers was produced by Acetobacter xylinum. Hydroxypropyl bacterial celluloses (HPBC) were synthesized by surface modification of nano-fibrils via hydroxypropylation using two modifier systems, sodium hydroxide/ propylene oxide as system (I) and sodium hydroxide/urea/propylene oxide as system (II) respectively. The equilibrium swelling ratio (ESR) of HPBC was studied. ESR of HPBC obtained from system (I) was significantly higher than that obtained from system (II). The maximum ESR of HPBC was nearly 70 times larger than that of air dr

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Hu, Yang, Shanshan Li, Tanya Jackson, Hanna Moussa, and Noureddine Abidi. "Preparation, Characterization, and Cationic Functionalization of Cellulose-Based Aerogels for Wastewater Clarification." Journal of Materials 2016 (December 20, 2016): 1–10. http://dx.doi.org/10.1155/2016/3186589.

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Aerogels are a series of materials with porous structure and light weight which can be applied to many industrial divisions as insulators, sensors, absorbents, and cushions. In this study, cellulose-based aerogels (aerocelluloses) were prepared from cellulosic material (microcrystalline cellulose) in sodium hydroxide/water solvent system followed by supercritical drying operation. The average specific surface area of aerocelluloses was 124 m2/g. The nitrogen gas (N2) adsorption/desorption isotherms revealed type H1 hysteresis loops for aerocelluloses, suggesting that aerocelluloses may possess

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Ma’alinia, A., H. Asgari Moghaddam, E. Nouri, and M. R. Mohammadi. "Long-term stability of dye-sensitized solar cells using a facile gel polymer electrolyte." New Journal of Chemistry 42, no. 16 (2018): 13256–62. http://dx.doi.org/10.1039/c8nj02157k.

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Nielsen, G. D., A. E. Rohold, and K. E. Andersen. "Nickel contact sensitivity in the guinea pig. An efficient open application test method." Acta Dermato-Venereologica 72, no. 1 (1992): 45–48. http://dx.doi.org/10.2340/00015555724548.

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Nickel contact sensitivity was successfully induced in guinea pigs using an open epicutaneous application method. Immediately after pretreatment with 1% aqueous sodium lauryl sulfate, upper back skin was treated daily for 4 weeks with 0.3%-3% nickel sulfate in either a 1% lanolin cream (Vaseline, pH 5 SAD crème) or hydroxypropyl cellulose. Weekly intradermal injections with aluminium potassium sulfate were used as adjuvant. The animals were challenged twice with a one week interval, with nickel sulfate 2% in water and 1% in petrolatum, respectively. The response rates in the test groups treate

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Prado, Ney Robson Taironi do, Joabel Raabe, Seyedmohammad Mirmehdi, et al. "STRENGTH IMPROVEMENT OF HYDROXYPROPYL METHYLCELLULOSE/ STARCH FILMS USING CELLULOSE NANOCRYSTALS." CERNE 23, no. 4 (2017): 423–34. http://dx.doi.org/10.1590/01047760201723042303.

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ABSTRACT Interest in cellulose nanocrystals obtained from natural resources has grown mainly because of features that such materials provide when inserted into polymeric matrices. The present study aimed to evaluate the effect of cellulose nanocrystals addition on mechanical properties of biofilms made from hypromellose (or hydroxypropyl methylcellulose - HPMC) and cassava starch blends (CS). The cellulose nanocrystals were produced by acid hydrolysis and characterized by optical microscopy (OM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and thermogravimetry (TG). Films w

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