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首页> 外文期刊>Journal of Applied Polymer Science >Blend Fibers of Polyacrylonitrile and Water-Soluble Chitosan Derivative Prepared from Sodium Thiocyanate Solution
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Blend Fibers of Polyacrylonitrile and Water-Soluble Chitosan Derivative Prepared from Sodium Thiocyanate Solution

机译：硫氰酸钠溶液制备的聚丙烯腈与水溶性壳聚糖衍生物的混纺纤维

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摘要

A water-soluble chitosan derivative of N-(2-hydroxy)propyl-3-trimethylammonium chitosan chloride (HTCC), synthesized by the reaction of chitosan and glycidyltrimethyl ammonium chloride, and polyacrylonitrile (PAN) were blended using 46% (w/w) NaSCN aqueous solution as a common solvent. The total polymer concentration of blend solution was fixed at 12% (w/w), and the relative composition of PAN/HTCC in the blend solution varied from 0/100 to 80/20 by weight. The PAN/HTCC blend fibers with the appropriate physical property were prepared by a wet spinning and drawing process. The effect of HTCC content on the structural change, miscibility, and ability to be dyed of the blend fibers was investgiated. The optical and scanning electron microscopic observation gave no indication of phase separation up to 20% HTCC content. Differential scanning calorimetry and dynamic mechanical measurements of the blend fibers show single glass transition temperatures that increase with increasing blend ratio of HTCC. All the experimental results exhibit that the blends are miscble on the molecular scale. The blend fibers could be dyed with an acid dye. This enhanced ability of the blend fibers to be dyed with acid dyes could be useful for one-step dyeing when mixed with other fibers, such as wool and nylon.
机译：通过壳聚糖和缩水甘油基三甲基氯化铵反应合成的N-（2-羟基）丙基-3-三甲基铵壳聚糖氯化物（HTCC）的水溶性壳聚糖衍生物与聚丙烯腈（PAN）混合使用46％（w / w ）NaSCN水溶液作为常用溶剂。共混溶液的总聚合物浓度固定为12％（w / w），并且共混溶液中PAN / HTCC的相对组成在0/100至80/20重量％之间变化。具有适当物理性能的PAN / HTCC共混纤维是通过湿法纺丝和拉伸工艺制备的。研究了HTCC含量对共混纤维结构变化，混溶性和染色能力的影响。光学和扫描电子显微镜观察未显示出高达20％HTCC含量的相分离。混合纤维的差示扫描量热法和动态力学测量结果表明，单一玻璃化转变温度随HTCC混合比的增加而增加。所有实验结果表明，该共混物在分子规模上是可混溶的。共混纤维可以用酸性染料染色。当掺混纤维与其他纤维（例如羊毛和尼龙）混合时，这种增强的纤维被酸性染料染色的能力可以用于一步染色。

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