Effect of polymer matrix on photo-stability of photo-luminescent dyes in multi-layer polymeric structures

被引：28

作者：

Baumberg, I ^{[1
]}

Berezin, O ^{[1
]}

Drabkin, A ^{[1
]}

Gorelik, B ^{[1
]}

Kogan, L ^{[1
]}

Voskobojnik, M ^{[1
]}

Zaidman, M ^{[1
]}

机构：

[1] ELAM Ltd, IL-91450 Jerusalem, Israel

来源：

POLYMER DEGRADATION AND STABILITY | 2001年 / 73卷 / 03期

关键词：

photo-stability; luminescent dyes; coatings; PVC; PVDF;

D O I：

10.1016/S0141-3910(01)00119-7

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 present study considers the photo-stability of luminescent dyes in multi-layer coatings made of various polymers [low-density polyethylene (LDPE), poly(vinyl chloride) (PVC) and poly(vinylidene fluoride) (PVDF)]. Dye stability is shown to depend on both the chemical structure of the colourant and the photo-stability of the polymer matrix. The influence of colourant self absorption on its photo-stability is shown. This effect was used to increase dye lightfastness in multi-layer coatings. In the case of a coloured PVC intermediate layer covered by an upper PVDF layer it is possible either to decrease or to increase lightfastness depending on the presence of UV-absorbers in the upper layer and its thickness and flexibility. Use of blends of PVDF based polymers with coloured PMMA substantially improves photo-stability of dyes compared to colourants introduced into pure PVDF. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：403 / 410

页数：8

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JOURNAL OF FLUORINE CHEMISTRY, 2000, 104 (01) :73-77

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