吸水性热塑性橡胶——氧乙烯-氧丙烯-苯乙烯多嵌段共聚物的合成及性能  

Synthesis and properties of water-absorbing thermoplastic elastomers --oxyethylene-oxypropylene-styrene multiblock copolymers

作　　者：谢洪泉[1] 陈晓源[1] 过俊石[1] 

机构地区：[1]华中科技大学化学系,湖北武汉430074

出　　处：《弹性体》2001年第4期1-4,共4页China Elastomerics

基　　金：国家自然科学基金项目 (2 92 741 63 )

摘　　要：通过聚乙二醇、聚丙二醇、遥爪双羟基聚苯乙烯 3种预聚物以甲苯二异氰酸酯 (TDI)为偶联剂合成氧乙烯 -氧丙烯 -苯乙烯多嵌段共聚物。研究其合成条件、精制及表征 ,并研究其力学性能、吸水性及乳化性质。结果表明 ,某些组成的嵌段共聚物呈现热塑性弹性体行为 ,吸水率达到 5 0 0 %～70 0 %。Oxyethylene oxypropylene styrene) multiblock copolymers were synthesized by coupling polypropylene glycol, polyethylene glycol and telechelic dihydroxyl polystyrene together using toluene diisocyanate as coupling agent. The synthetic conditions , purification and characterization , as well as their water absorbing property, mechanical properties, and emulsifying property were studied. The results showed that within certain range of compositions, the multiblock copolymers behave as thermoplastic elastomer and can absorb 500%～700% (w) of water.

关 键 词：热塑性橡胶 吸水性橡胶 嵌段共聚物 遥爪聚苯乙烯 氧乙烯 氧丙烯 苯乙烯 多嵌段共聚物 

分 类 号：TQ334.9[化学工程—橡胶工业]