超支化聚苯硫醚的合成和应用  

Synthesis and Application of Hyperbranched PPS

作　　者：田菁[1] 王新营[1] 崔晓玲[1] 王燕萍[1] 王依民[1] 

机构地区：[1]东华大学材料科学与工程学院,上海200051

出　　处：《高分子材料科学与工程》2008年第3期122-124,128,共4页Polymer Materials Science & Engineering

摘　　要：合成了3,4-二氯苯磺酰氯,用锌粉还原得到超支化聚苯硫醚(PPS)的单体——3,4-二氯硫酚,并用其制备了超支化PPS。红外光谱显示其与线型高分子量PPS相比结构有很大不同。对超支化PPS/PPS复合纤维的研究表明,适量增加超支化PPS能提高PPS的结晶度,超支化PPS/PPS复合纤维的拉伸强度也随之提高,另一方面超支化PPS可以起到类似增塑剂的作用,提高了PPS的韧性,从而达到提高力学性能的目的。扫描电镜结果显示,添加超支化PPS有利于形成力学性能提高的界面结构。3, 4-dichlorobenzenethiol was synthesized by reduction of 3, 4-dichlorobenzenesulfonyl chloride with the reducing agent— zinc powder. Polymerization of 3, 4-dichlorobenzenethiol was accomplished to obtain hyperbranched poly （phenylene sulfide）, whose structure was completely different from linear PPS via FT-IR. Investigation of hyperbranched PPS/PPS composite fiber shows that proper amount of hyperbranched PPS can increase the erystallinity of linear PPS; therefore tensile strength increases. In addition, hyperbranched PPS performed as plasticizer to enhance the toughness. SEM observation indicated that strengthened interface structure tends to form after addition hyperbranched PPS

关 键 词：超支化聚苯硫醚 聚苯硫醚 合成 力学性能 

分 类 号：TQ326.5[化学工程—合成树脂塑料工业]