高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (4): 558.

• 论文 • 上一篇    

带溴端基的聚氧化乙烯与聚乙烯亚胺的交联反应及阳离子型高吸水树脂

刘启溶   

  1. 成都科技大学高分子研究所, 成都, 610065
  • 收稿日期:1991-03-11 出版日期:1992-04-24 发布日期:1992-04-24

Crossl inking of Br Terminated Poly (Ethyl ene Oxide) with Poly (Ethyleneimine) and Cationic Water Absorbent Resin

LIU Qi-rong   

  1. Polymer Research Institute, Chengdu University of Science and Technology, Chengdu, 610065
  • Received:1991-03-11 Online:1992-04-24 Published:1992-04-24

PDF (PC)

被引次数

12

摘要： 聚氧化乙烯(PEO)和聚乙烯亚胺(PEI)都是广泛应用的水溶性高分子.将PEO二端的羟基转化成活泼的溴端基,再与PEI交联,可以形成亲水性网络.使这种网络转化成季铵盐,便制得了一种新颖的阳离子型高吸水树脂.这种高吸水树脂文献中迄今未见报道.由于网络中存在的是N+,它不会与水中Ca2+、Mg2+及其它重金属离子结合而丧失吸水能力.

关键词: 聚氧化乙烯, 聚乙烯亚胺, 交联共聚物, 盐酸季铵盐, 吸水量

Abstract: The effects of composition of reaction system and the quantity of solvent on the yield of the crosslinking copolymer of Br terminated poly (ethylene oxide) (BrPEOBr) with poly (ethyleneimine)(PEI) were investigated.When 8.0 g BrPEOBr was reacted with 1.0 g PEIin 100 mL DMSO at 120℃ for 5 h, all the PEIcould be converted into crosslinking copolymer, and the conversion of BrPEOBr reached 94.3%.The copolymer (PEO-PEI) can absorb the deion-ized water 80 times its own weight.Further converting the copolymer into quaternary ammonium chloride, it can absorb the deionized water 250 times its own weight.

Key words: Poly (ethylene oxide), Poly (ethyleneimine), Crosslinking copolymer, Quaternary ammonium chloride, Water absorption capacity

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