甲基丙烯酸丁酯/苯乙烯共聚物纤维的制备和性能

Preparation and properties of butyl methacrylate/styrene copolymer fiber

以过氧化苯甲酰（BPO）为引发剂，采用水相悬浮聚合法合成了甲基丙烯酸丁酯（BMA）／苯乙烯（St）共聚物，将共聚物溶于N，N-二甲基乙酰胺（DMAc）中配制成纺丝溶液，将其用湿法纺丝成形后制备出具有吸附弱极性液态有机物（油品）功能的甲基丙烯酸丁酯／苯乙烯共聚物纤维．用傅里叶红外光谱仪（FTIR）和^1H核磁共振波谱仪（NMR）研究了共聚物的化学结构，用热重分析仪（TG）、动态热机械分析仪（DMA）、单丝强力仪等对纤维的相关性能进行了分析．结果表明，BMA／St70／30共聚物纤维的性能良好，对煤油、石油醚和庚烷等油品的饱和吸附率分别达到3．7g／g纤维、5．3g／g纤维和4．1g／g纤维．

Butyl methacrylate/styrene copolymer was synthesized with butyl methacrylate and styrene monomer by suspension polymerization, with BPO as initiator. The spinning liquid was prepared by dissolving synthetic copotymer into dimethyl acetylamide （DMAc） and then spun into fibers. The fiber with absorption function was obtained. The methacrylate/styrene copolymer were characterized by FTIR and ^1H nuclear magnetic resonance （NMR） spectrometer; The related performance of copolymer fiber were analysized by thermogravimetric analysis （TG）, dynamic mechanical analysis （DMA） and single-wire power equipment. It showed that BMA/St70/30 copolymer fiber which had better absorptive ability for specific kinds of oil was prepared had good performance. Its per gram methacrylate/styrene copolymer fiber saturated absorbency of kerosene, petroleumether, gasoline was 3.7 g kerosene/g copolymer fiber, 5.3 g petroleum/g copolymer fiber, 4.1 g heptane/g copolymer fiber respectively.