四甲撑 [
sì jiǎ chēng]
[有化] tetramethylene
- 对以发烟硫酸为主体的双元催化剂进行四氢呋喃开环聚合制备聚氧四甲撑二醇进行了系统的研究。
The synthesis of polyoxytetramethylene glycol by cationic ring opening polymerization of tetrahydrofuran was studied in use of a binary catalyst system of fuming sulfuric acid and co catalyst B.
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