Transport properties of chitosan membranes: Influence of crosslinking

3区工程技术 Q1 Materials Science Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2000-06-01 DOI:10.1002/(SICI)1099-0488(20000601)38:11<1521::AID-POLB120>3.0.CO;2-#

C. Tual, E. Espuche, M. Escoubes, A. Domard

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引用次数: 123

Abstract

A chitosan film with acetylation degree close to 2% was crosslinked with glutaraldehyde. The consequences of this chemical modification were studied on the polymer gas and water transport properties. The crystalline domains were not affected by the crosslinking reaction and the modification of the amorphous phase did not induce variation of the gas permeability at anhydrous state. A crosslinking of 5 h, leading to a theoretical amine conversion of 60% in the amorphous phase induced only small changes of the polymer water sorption capacity at relative pressures less than 0.5. The main modification of the transport properties induced by this treatment occurred at a relative pressure equal to one with a significant reduction of the water sorption and water permeation and with the impossibility to measure the gas permeability coefficient in these conditions due to the brittleness of the membrane. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 1521–1529, 2000

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壳聚糖膜的传输性能:交联的影响

用戊二醛交联制备了乙酰化度接近2%的壳聚糖膜。研究了化学改性对聚合物气体和水输运性能的影响。交联反应不影响晶域，非晶相的改性不影响无水状态下气体渗透率的变化。在相对压力小于0.5的情况下，交联5h，导致非晶相的理论胺转化率为60%，仅引起聚合物吸水能力的微小变化。这种处理引起的输运性质的主要改变发生在一个相对压力下，这个相对压力等于一个吸水率和渗透率显著降低的压力，并且由于膜的脆性，在这些条件下不可能测量透气系数。©2000 John Wiley & Sons, Inc[J] .高分子材料学报，2003,19 (3):521 - 529

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来源期刊

Journal of Polymer Science. Part B, Polymer Physics 工程技术-高分子科学

CiteScore

5.90

自引率

0.00%

发文量

审稿时长

2.1 months

期刊介绍： Since its launch in 1946 by P. M. Doty, H. Mark, and C.C. Price, the Journal of Polymer Science has provided a continuous forum for the dissemination of thoroughly peer-reviewed, fundamental, international research into the preparation and properties of macromolecules. From January 2020, the Journal of Polymer Science, Part A: Polymer Chemistry and Journal of Polymer Science, Part B: Polymer Physics will be published as one journal, the Journal of Polymer Science. The merged journal will reflect the nature of today''s polymer science research, with physics and chemistry of polymer systems at the heart of the scope. You can continue looking forward to an exciting mix of comprehensive reviews, visionary insights, high-impact communications, and full papers that represent the rapid multidisciplinary developments in polymer science. Our editorial team consists of a mix of well-known academic editors and full-time professional editors who ensure fast, professional peer review of your contribution. After publication, our team will work to ensure that your paper receives the recognition it deserves by your peers and the broader scientific community.