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首页> 外文期刊>Journal of Applied Polymer Science >A study on mechano-electro-chemical behavior of chitosan/poly(propylene glycol) composite fibers
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A study on mechano-electro-chemical behavior of chitosan/poly(propylene glycol) composite fibers

机译：壳聚糖/聚丙二醇复合纤维的机械电化学行为研究

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Chitosan (CS) and poly(ethylene glycol) (PEG) composite fibers were prepared via solution spinning. The fibers were then crosslinked with epichlorohydrin (ECH) and glutaraldehyde (GA). Data indicated that the swelling behavior of CS-PEG fibers exhibited pH sensitivity, and crosslinking could change the mechanical properties of fibers. Moreover, the mechano-electro-chemical (MEC) performance showed that the bending direction of fiber specimen would invert at a critical concentration of both of the crosslinking agents. i.e., in a 0.1% HCl aqueous solution under a de electric field, as the ECH concentration was more than 9.0 x 10(-3) M or GA concentration was more than 5.64 x 10(-4) M, the CS-PEG fibers bent to the cathode, while they bent to the anode if ECH or GA concentration was less than the above values respectively. The mechanisms involve variation in the fixed charge density on the macromolecular network as well as difference in the mechanical properties of the fibers. (C) 2000 John Wiley & Sons, Inc. [References: 16]
机译：壳聚糖（CS）和聚（乙二醇）（PEG）复合纤维是通过溶液纺丝制备的。然后将纤维与环氧氯丙烷（ECH）和戊二醛（GA）交联。数据表明，CS-PEG纤维的溶胀行为表现出pH敏感性，而交联可改变纤维的机械性能。此外，机械-电化学（MEC）性能表明，在两种交联剂的临界浓度下，纤维样品的弯曲方向都将反转。即，在去电场的0.1％HCl水溶液中，当ECH浓度大于9.0 x 10（-3）M或GA浓度大于5.64 x 10（-4）M时，CS-PEG纤维如果ECH或GA浓度分别小于上述值，则它们弯曲到阴极，而它们弯曲到阳极。机理涉及大分子网络上固定电荷密度的变化以及纤维机械性能的差异。 （C）2000 John Wiley＆Sons，Inc. [参考：16]

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