EPOXY-RESIN CURE .1. F-19 NMR OF BORON-TRIFLUORIDE MONOETHYLAMINE AND FLUOROBORIC ACID

被引：22

作者：

SMITH, RE

LARSEN, FN

LONG, CL

机构：

[1] Bendix Corp, Kansas City, MO, USA, Bendix Corp, Kansas City, MO, USA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1984年 / 29卷 / 12期

关键词：

BORON COMPOUNDS - FLUORINE COMPOUNDS - Chemistry - MAGNETIC RESONANCE - SPECTROSCOPY - THERMAL EFFECTS;

D O I：

10.1002/app.1984.070291206

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Fluorine-19 NMR is used to examine the role of boron trifluoride monoethylamine (BF//3-MEA) in epoxy resin cure. Spectra were first recorded in a variety of solvents suitable for dissolving different epoxy resins. All spectra contained a peak due to fluoroboric acid. Spectra of BF//3-MEA in orthodichlorobenzene were then recorded at elevated temperatures. The fluoroboric acid peak area increased, indicating that the BF//3-MEA was being hydrolyzed. Results incidate that, at temperatures above 100 degree C, BF//3-MEA is completely hydrolyzed within 5 min to fluoroboric acid.

引用

页码：3697 / 3711

页数：15

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