中低相对分子质量聚氧化乙烯(PEO)的合成  

Preparation of Polyethylene Oxide of Middle-low Molecular Weight

作　　者：罗勇[1] 李菊梅[1] 陆平晔[1] 贾晓蕾[1] 何珩[1] 

机构地区：[1]上海化工研究院新技术开发室,上海200062

出　　处：《造纸化学品》2005年第2期1-3,10,共4页Paper Chemicals

摘　　要：采用以碱土金属氨化物为主体的多组分催化剂进行了环氧乙烷的聚合实验。考察了催化剂、聚合等工艺参数对环氧乙烷聚合的影响。在聚合时间6h ,温度30℃,m (EO)∶m(Ca) =10 0 :1,m(改性剂) :m(Ca) =1.37∶1;V(溶剂)∶V(EO) =3∶1的工艺条件下制备了相对分子质量在30万～2 0 0万的白色粒状聚氧化乙烯,聚合收率在95The polymerization of ethylene oxide was carried out with multi-phase catalysts whose main components were alkaline-earth metals. And the influences of different parameters such as temperature, concentration of catalysts, reaction time upon the polymerization were studied in this article. Under given conditions, white granular polyethylene oxide with average relative molecular weight(ARMW) of 3×10~5～20×10~5 was achieved and the polymerization yield was over 95%.

关 键 词：聚氧化乙烯 氨钙催化剂 聚合 相对分子质量 

分 类 号：TS727.1[轻工技术与工程—制浆造纸工程]