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首次以聚环氧氯丙烷为前驱体(PECH),采用微波辅助加热方法在两相体系中进行大分子叠氮化反应,合成了聚叠氮缩水甘油醚(GAP)。红外光谱结果表明,微波法有效缩短了叠氮化反应时间,1h叠氮化率可达93.7%。通过性能测试表明合成的GAP数均分子量为3140,氮含量40.1%,玻璃化转变温度(Tg)为-49.2℃,与市售GAP性质相同。微波法合成GAP的策略具有快速、高效的特点,并可显著改善其制备过程中的安全性。
The first polyepichlorohydrin (PECH) was synthesized by microwave assisted heating in a two-phase system and the azide was synthesized. Infrared spectroscopy results show that microwave method effectively shorten the azidation reaction time, 1h azidation rate up to 93.7%. The performance tests showed that the average molecular weight of GAP synthesized was 3140, the nitrogen content was 40.1% and the glass transition temperature (Tg) was -49.2 ℃, which was the same as the commercial GAP. The strategy of microwave synthesis of GAP is fast and efficient and can significantly improve the safety during its preparation.