Formation of microporous membranes of poly(1,4-butylene succinate) via nonsolvent and thermally induced phase separation
Formation of microporous membranes of poly(1,4-butylene succinate) via nonsolvent and thermally induced phase separation
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DOI：
10.5004/dwt.2010.1715
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发表时间：
2010
影响因子：
1.1
通讯作者：
Takaaki Tanaka;M. Takahashi;S. Kawaguchi;T. Hashimoto;H. Saitoh;Tomoaki Kouya;M. Taniguchi;D. R. Lloyd
中科院分区：
文献类型：
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作者：
Takaaki Tanaka;M. Takahashi;S. Kawaguchi;T. Hashimoto;H. Saitoh;Tomoaki Kouya;M. Taniguchi;D. R. Lloyd
以可生物降解生物质塑料聚（1,4-丁二酸丁二酯）（PBS）为原料，采用甲醇混凝浴非溶剂热诱导相分离法制备了PBS-氯仿微孔膜。在25℃下，10%聚合物溶液制备的膜的渗透阻力大于1014 m−1。膜电阻随预孵育温度的升高而降低。细菌细胞（0.7φ x 2.5 μm）的保留率随孵育前温度的升高而降低。聚合物浓度的增加增加了细胞的渗透阻力和保留率。在47.5°C预孵育的10% PBS溶液中制备的膜显示出1011 m−1的渗透阻力和99%的细菌细胞保留率。PBS膜将在生物分离过程中用作预过滤器，使用后可通过堆肥处理。
Microporous membranes of poly(1,4-butylene succinate) (PBS), which is a biodegradable biomass plastic, were prepared from PBS-chloroform solutions via nonsolvent and thermally induced phase separation with a coagulation bath of methanol. The permeation resistance of a membrane prepared from a 10% polymer solution at 25°C was more than 1014 m−1. The membrane resistance decreased with increasing pre-incubation temperature. Retention of bacterial cells (0.7φ x 2.5 μm) decreased with increasing pre-incubation temperature. Increasing polymer concentration increased the permeation resistance and the retention of the cells. Membranes prepared from the 10% PBS solution pre-incubated at 47.5°C show a permeation resistance of 1011 m−1 and retention of the bacterial cells of 99%. The PBS membranes will be useful in biosepartion processes as a prefilter that can be disposed by composting after use.