Добірка наукової літератури з теми "Cellulose-based polyesters"
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Статті в журналах з теми "Cellulose-based polyesters"
Li, Dongfang, Tommy Iversen, and Monica Ek. "Hydrophobic materials based on cotton linter cellulose and an epoxy-activated polyester derived from a suberin monomer." Holzforschung 69, no. 6 (August 1, 2015): 721–30. http://dx.doi.org/10.1515/hf-2014-0261.
Повний текст джерелаZhang, Junhua, Yao Liu, Zhaohua Qi, Liang He, and Lincai Peng. "Progress in the synthesis and properties of 2,5-furan dicarboxylate based polyesters." BioResources 15, no. 2 (February 14, 2020): 4502–27. http://dx.doi.org/10.15376/biores.15.2.zhang.
Повний текст джерелаAbe, Mateus Manabu, Marcia Cristina Branciforti, and Michel Brienzo. "Biodegradation of Hemicellulose-Cellulose-Starch-Based Bioplastics and Microbial Polyesters." Recycling 6, no. 1 (March 22, 2021): 22. http://dx.doi.org/10.3390/recycling6010022.
Повний текст джерелаChang, Rong-Kun, and James C. Price. "Aliphatic Polyesters and Cellulose-Based Polymers for Controlled Release Applications." Journal of Biomaterials Applications 3, no. 1 (January 1988): 80–101. http://dx.doi.org/10.1177/088532828800300104.
Повний текст джерелаBerketova, L., and V. Polkovnikova. "On the Eco-, Edible and Fast-decomposing Packaging in the Food Industry." Bulletin of Science and Practice 6, no. 10 (October 15, 2020): 234–43. http://dx.doi.org/10.33619/2414-2948/59/23.
Повний текст джерелаMatos, Marina, Andreia F. Sousa, Nuno H. C. S. Silva, Carmen S. R. Freire, Márcia Andrade, Adélio Mendes, and Armando J. D. Silvestre. "Furanoate-Based Nanocomposites: A Case Study Using Poly(Butylene 2,5-Furanoate) and Poly(Butylene 2,5-Furanoate)-co-(Butylene Diglycolate) and Bacterial Cellulose." Polymers 10, no. 8 (July 24, 2018): 810. http://dx.doi.org/10.3390/polym10080810.
Повний текст джерелаSommer, Korbinian, Daniel Van Opdenbosch, and Cordt Zollfrank. "Synthesis and Characterization of Functional Cellulose–Ether-Based PCL- and PLA-Grafts-Copolymers." Polymers 15, no. 2 (January 15, 2023): 455. http://dx.doi.org/10.3390/polym15020455.
Повний текст джерелаWang, Yuhuan, Jinglu Liao, Jun Lu, Zhaoshu Chen, Shanjun Gao, Lin Gan, and Jin Huang. "Regulating surface molecular structure of cellulose nanocrystals to optimize mechanical reinforcement effect on hydrophobic bio-based polyesters." Iranian Polymer Journal 29, no. 8 (June 25, 2020): 693–705. http://dx.doi.org/10.1007/s13726-020-00832-6.
Повний текст джерелаDi Bella, Gaetano, Santo Fabio Corsino, Federica De Marines, Francesco Lopresti, Vincenzo La Carrubba, Michele Torregrossa, and Gaspare Viviani. "Occurrence of Microplastics in Waste Sludge of Wastewater Treatment Plants: Comparison between Membrane Bioreactor (MBR) and Conventional Activated Sludge (CAS) Technologies." Membranes 12, no. 4 (March 29, 2022): 371. http://dx.doi.org/10.3390/membranes12040371.
Повний текст джерелаValvez, Sara, Alberto Maceiras, Paulo Santos, and Paulo N. B. Reis. "Olive Stones as Filler for Polymer-Based Composites: A Review." Materials 14, no. 4 (February 10, 2021): 845. http://dx.doi.org/10.3390/ma14040845.
Повний текст джерелаДисертації з теми "Cellulose-based polyesters"
Olsson, Ann. "Suberin based polyesters." Licentiate thesis, KTH, Fibre and Polymer Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10528.
Повний текст джерелаIn the wish to replace oil-based chemicals and materials with such based on biodegradable and renewable resources, this work has been performed. In a biorefinary concept, waste birch bark from paper pulp mills and timber production has been evaluated as a potential source for polyesters.
In the present thesis investigations are made on synthesis of epoxy-functionalized polyesters from the birch outer bark aliphatic suberin ω-hydroxy fatty acid, cis-9,10-epoxy-18-hydroxyoctadecanoic acid. Studies of accessibility and reactivity of cellulose have been performed as a first step to enable covalent attachment or grafting of the epoxy-functionalized polyesters to cellulose.
Candida antarctica lipase B (Novozym 435) is reported to be an efficient catalyst for condensation polymerization of cis-9,10-epoxy-18-hydroxyoctadecanoic acid to form poly(9,10-epoxy-18-hydroxyoctadecanoic acid) with high molecular weight (Mw). Performed in toluene in the presence of molecular sieves a Mw of 20000 (reaction time 68 h, Mw/Mn 2.2) was obtained. Performed in bulk without any drying agent a Mw of 15000 was obtained at a much shorter reaction time (reaction time 3h, Mw/Mn 2.2). Further the same lipase has been used for succesful co-polymerizations of cis-9,10-epoxy-18-hydroxyoctadecanoic acid with lactones. By combining condensation and ring-opening polymerization, epoxy-functionalized linear polyesters and cyclic oligomers have been synthesized. For example, co-polymerization of cis-9,10-epoxy-18-hydroxy-octadecanoic acid and ε-caprolactone performed in toluene in the presence of molecular sieves gave mainly cyclic oligomers, especially at shorter reaction times. Co-polymerization performed in bulk gave linear polyesters with a Mw of 35000 (reaction time 24 h, Mw/Mn 6), irrespective molecular sieves were added or not.
The epoxy-functionalized polyesters could be used for surface modification of pulp fibres and cellulose fibrils, which further can be used for production of new valuable composite materials with improved features. Knowledge of how different processing conditions affect the structure of cellulose is an important tool in the work to achieve successful grafting of produced polyesters to cellulose fibres/fibrils. CP/MAS 13C-NMR spectroscopy has been used to study structural changes caused by the dissolving pulp process. An irreversible increase in average fibril aggregate width from raw pulp to final pulp during the process is shown. This increase in aggregate width could negatively influence the reactivity of the cellulose.