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含能材料  2010 

高能热塑性粘合剂CE-PBAMO的合成

DOI: 10.3969/j.issn.1006-9941.2010.03.005

Keywords: 高分子化学,相转移催化,3,3-双溴甲基氧杂环丁烷(BBMO),3,3-双叠氮甲基氧杂环丁烷(BAMO),聚合的BAMO(PBAMO),扩链的PBAMO(CE-PBAMO)

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Abstract:

以1,1,1-三溴甲基-1-羟甲基甲烷为原料,水和甲苯为反应介质,季铵盐为相转移催化剂,在NaOH作用下经关环反应合成3,3-双溴甲基氧杂环丁烷(BBMO)。以季铵盐为相转移催化剂,BBMO在水相介质中经叠氮基取代反应制备出3,3-双叠氮甲基氧杂环丁烷(BAMO)。BAMO经阳离子开环聚合可制备出数均分子量(Mn)为3000~4000的预聚物PBAMO。PBAMO经2,4-甲苯二异氰酸酯(2,4-TDI)与1,4-丁二醇(1,4-BDO)扩链即可制备出扩链的PBAMO(CE-PBAMO)。用红外、核磁、高效液相色谱、DSC、GPC等对单体、预聚物和CE-PBAMO的结构及相关物化性能进行了表征。结果表明,BBMO收率与纯度分别为81%和97.2%;BAMO收率与纯度分别为80.9%和98.37%;用相转移催化法制备BBMO和BAMO具有收率高、纯度高、安全性好等特点;所合成的CE-PBAMO的Mn为38933,可熔化溶解,20℃时拉伸强度高达12.7MPa,可作为高能热塑性粘合剂,用于具有3R概念新型可燃药筒的制备。

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