The storage stability of melamine formaldehyde resin solutions: III. Storage at elevated temperatures

被引：33

作者：

Jahromi, S ^{[1
]}

机构：

[1] DSM Res BV, NL-6160 MD Geleen, Netherlands

来源：

POLYMER | 1999年 / 40卷 / 18期

关键词：

MF resins; C-NMR; storage stability;

D O I：

10.1016/S0032-3861(98)00724-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The possibility of storage of melamine formaldehyde (MF) resin solutions at elevated temperatures is examined. A series of MF resin solutions with various formulations were synthesised and storage stability was studied at room temperature and 50 degrees C. In general, the stability at 50 degrees C was higher over a much broader range of reaction times when compared with storage stability at room temperature. The storage of MF resin solutions at elevated temperatures offers many advantages like the ease of resin production on large scale and high reproducibility of storage stability. Further, it is shown, by means of C-13-NMR and light scattering analysis, that the chemical structure and molecular weight are identical at the point of instability at 50 degrees C irrespective of the initial degree of condensation i.e, reaction time. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：5103 / 5109

页数：7

共 12 条

[1]

BRANDTS PM, UNPUB

[2] REACTION CONTROL OF THE SYNTHESIS OF MELAMINE FORMALDEHYDE RESINS [J].