POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFIUORIDE INITIATED

ZHANG A-fang; ZHANG Hong-zhi; YANG Hui-chang; FENG Xin-de

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POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFIUORIDE INITIATED

Research Bulletin | 更新时间：2021-03-19

- POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFIUORIDE INITIATED
- Acta Polymerica Sinica Issue 5, Pages: 637-640(1989)
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- Published：20 October 1989，
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ZHANG A-fang, ZHANG Hong-zhi, YANG Hui-chang, FENG Xin-de. POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFIUORIDE INITIATED. [J]. Acta Polymerica Sinica (5):637-640(1989)
DOI：

ZHANG A-fang, ZHANG Hong-zhi, YANG Hui-chang, FENG Xin-de. POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFIUORIDE INITIATED. [J]. Acta Polymerica Sinica (5):637-640(1989) DOI：

摘要

Abstract

The molecular weight of polytetramethylene glycol (PTMG) prepared from tetrahydrofu-ran (THF) by using cocatalysts of BF3-etherate and epichlorohydrin (ECH) in the presence of butylene glycol(BG) increased sharply with the polymer conversion

but at yields higher than 80% but could be exactly controlled by the molar ratio of BG to BF3. The polyether obtained possessed around 70 mol% primaly hydrcxyl end-groups and a hydroxyl end-group functionality of two. The content of ECH derived units in each polymer chain containing 18.2 or 33.8THF derived units is around 1.60 or 2.16 respectively.

关键词

正离子聚合开环聚合四氢呋喃14-丁二醇三氟化硼-乙醚环氧氯丙烷为聚合促进剂

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