POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFLUORIDE INITIATOR II. INFLUENCE OF WATER.

ZHANG Hong-zhi; FENG Jian-rong; ZHANG Shu-jie; FENG Xin-de

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POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFLUORIDE INITIATOR II. INFLUENCE OF WATER.

Research Bulletin | 更新时间：2021-03-19

- POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFLUORIDE INITIATOR II. INFLUENCE OF WATER.
- Acta Polymerica Sinica Issue 6, Pages: 463-466(1987)
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- Published：20 December 1987，
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ZHANG Hong-zhi, FENG Jian-rong, ZHANG Shu-jie, FENG Xin-de. POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFLUORIDE INITIATOR II. INFLUENCE OF WATER.. [J]. Acta Polymerica Sinica (6):463-466(1987)
DOI：

ZHANG Hong-zhi, FENG Jian-rong, ZHANG Shu-jie, FENG Xin-de. POLYMERIZATION OF TETRAHYDROFURAN BY BORON TRIFLUORIDE INITIATOR II. INFLUENCE OF WATER.. [J]. Acta Polymerica Sinica (6):463-466(1987) DOI：

摘要

Abstract

The molecular weights of tetrahydrofuran (THF) polymerization products by BF3-epich-lorohydiin (ECH) catalyst system at 0-2℃ monthly increase as the reaction proceeds in dry conditions. A small amount of water introduced into the reaction system will sharply increase the molecular weight at high conversions. The molecular weight of the product could be precisely controlled at the molar ratio of water and BF3 being around 1.23 with high yield above 60%. The hydroxyl end-group functionality of the product is close to 2 and the content of the ECH derived units in each chain containing about 26.5 THF derived units is around 1.3.

关键词

正离子聚合开环聚合四氢呋喃聚丁二醇三氟化硼-乙醚环氧氯丙烷水

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