高分子量线型叠氮缩水甘油醚聚合物的合成  

SYNTHESIS OF HIGH MOLECULAR WEIGHT GLYCIDYL AZIDE POLYMER

作　　者：王平[1] 夏中均[1] 尹莉莎[1] 李常青[1] 

机构地区：[1]中国工程物理研究院化工材料研究所

出　　处：《含能材料》1998年第3期102-106,共5页Chinese Journal of Energetic Materials

摘　　要：介绍了高分子量线型叠氮缩水甘油醚聚合物（ＨＬＧＡＰ）的合成方法。研究了催化剂、抗氧剂、惰气保护等因素对母体高聚物环氧氯丙烷（ＰＥＣＨ）叠氮化速度、分子断链及分子量分布的影响。制备的ＨＬＧＡＰ分子量（Ｍｗ）达到１５００２１（叠氮化率９９．１６％）和２９５５６１（叠氮化率６９．２％），大大高于美国专利报道值（Ｍｗ＝５００００，叠氮化率４９％）。The synthesis method of high molecular weight glycidyl azide polymer (HL GAP) is described. The experimental results indicate that the azidation of the precursor,polyepichlorohydrin (PECH),is always accompanied with its chain breaking. In order to prepare high molecular weight and high azidized product,the influence of catalyst,antioxydant,inert gas protection and other factors on the HL GAP molecular weight ( M w) and its distribution were experimentally investigated. After optimization of the above said factors,the M w of HL GAP was increased to 1.5×10 5 and 2.95×10 5 with azidation rate ( R a) of 99.16% and 69.20%,respectively,much higher than Vandenberg′s report in USP 3 645 917 ( M w=5×10 4, R a=49%).

关 键 词：叠氮化率 断链 分子量分布 HL-GAP 聚合物 

分 类 号：O632.32[理学—高分子化学]