A novel approach to recycling of polyurethanes: chemical degradation of flexible polyurethane foams by triethyl phosphate

被引：61

作者：

Troev, K ^{[1
]}

Grancharov, G ^{[1
]}

Tsevi, R ^{[1
]}

Tsekova, A ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Polymers, BU-1113 Sofia, Bulgaria

来源：

POLYMER | 2000年 / 41卷 / 19期

关键词：

polyurethanes; chemical recycling; triethyl phosphate;

D O I：

10.1016/S0032-3861(00)00054-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

It was established that flexible polyurethane foams based on polyester or polyether polyol and toluene diisocyanate can be converted quantitatively into liquid form by treatment with triethyl phosphate (C2H5O)(3)P(O) Structures of the degraded products were studied by H-1, C-13 and P-31 NMR spectroscopy. The degraded products are phosphorus containing oligourethanes. The likely mechanism is presented. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：7017 / 7022

页数：6