一种低不饱和度高活性聚醚多元醇的合成  

Synthesis of a low unsaturation and high activity polyether polyol

作　　者：叶丞 俞中锋 宗红亮 张丽君 申宝兵 

机构地区：[1]江苏钟山化工有限公司,江苏南京210000

出　　处：《化学推进剂与高分子材料》2016年第1期69-73,共5页Chemical Propellants & Polymeric Materials

摘　　要：研究了采用再催化法及自制的低不饱和度端仲羟基聚醚二醇(Mn=1 700)与环氧乙烷(EO)的封端反应,确定了合适的再催化反应催化剂为甲醇钾,其用量为起始聚醚质量的1%。分别采用A法(中和–吸附法)和B法(吸附剂法)对粗低不饱和度高活性聚醚多元醇进行后处理,确定该聚醚的精致工艺。合成的聚醚T220E的环氧乙烷封端含量为聚醚总质量的15%,该聚醚具有不饱和度低、活性高等优点,能用于聚氨酯胶黏剂及弹性体的生产。The end capping reaction between self-made low unsaturation secondary hydroxyl-terminated polyether glycol （Mn=1 700） and ethylene oxide （EO） by using re-catalysis method was investigated. The potassium methoxide was confirmed as the catalyst for re-catalysis reaction, and its amount is 1% of the initial polyether mass. The post-treatment of the crude low unsaturation high activity polyether polyol was carried out by using A method （neutralization-adsorption method） and B method （adsorbent method） respectively, and the purification process was confirmed. In the synthesized polyether T220E, the EO content for end capping is 15% of the total polyether mass. The polyether possesses the advantages of low unsaturation, high activity etc., and can be used in production of polyurethane adhesive and elastomer.

关 键 词：低不饱和度 高活性 聚醚多元醇 再催化 精制 

分 类 号：O632.3[理学—高分子化学]