Urethanes and polyurethanes from suberin .1. Kinetic study

被引：52

作者：

Cordeiro, N

Belgacem, MN

Gandini, A

Neto, CP

机构：

[1] ECOLE FRANCAISE PAPETERIE & IND GRAPH,F-38402 ST MARTIN DHER,FRANCE

[2] UNIV MADEIRA,DEPT QUIM,P-9000 FUNCHAL,PORTUGAL

[3] UNIV AVEIRO,DEPT QUIM,P-3800 AVEIRO,PORTUGAL

来源：

INDUSTRIAL CROPS AND PRODUCTS | 1997年 / 6卷 / 02期

关键词：

suberin; urethane and polyurethanes; isocyanates; reaction kinetics;

D O I：

10.1016/S0926-6690(96)00212-9

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Within the context of a study on the preparation and the characterization of polyurethanes based on suberin, as a polyol, and conventional polyisocyanates, it was deemed necessary to carry out a preliminary study on the reactivity of the hydroxy functions of suberin. Aliphatic and aromatic mono- and di-isocyanates were tested and the kinetics of this system followed the classical second order up to conversions of about 85%. The influence of the steric hindrance and the electronic factors, linked to the specific structures of both types of isocyanates, was established. (C) 1997 Elsevier Science B.V.

引用

页码：163 / 167

页数：5

共 18 条

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