Kinetics of phenolic resol resin formation by HPLC. 2. Barium hydroxide

被引：47

作者：

Astarloa-Aierbe, G

Echeverria, JM

Martin, MD

Mondragon, I

机构：

[1] Univ Basque Country, Dept Ingn Quim & Medio Ambiente, Escuela Univ Ingn Tecn Ind, Euskal Herriko Unibertsitatea, Donostia San Sebastian 20011, Spain

[2] Bakelite Iberica, Hernani 20120, Spain

来源：

POLYMER | 1998年 / 39卷 / 15期

关键词：

phenolic resol resin; kinetics; catalyst;

D O I：

10.1016/S0032-3861(97)10275-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The evolution of phenolic resol resin catalysed by barium hydroxide under controlled temperature, formaldehyde to phenol ratio and water dilutability was quantitatively followed by liquid chromatography. Disappearance of phenol and formaldehyde and formation of addition products were quantitatively followed during synthesis. Higher molecular species formed by condensation reactions were diaryl compounds bonded by methylene bridges via para,para and ortho,para positions. No ortho, ortho bonds were detected by C-13 n.m.r. spectroscopy. Gas chromatography was used to follow the evolution of the final resin stored at three temperatures. Temperatures below zero are advisable for storing purposes of these phenolic resol resins. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：3467 / 3472

页数：6

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