Photodegradation of isotactic poly(1-butene): Multiscale characterization

被引：6
|
作者：
Benicek, Lubomir [1 ,2 ]
Chvatalova, Lenka [1 ]
Obadal, Martin [3 ]
Cermak, Roman [1 ,2 ]
Verney, Vincent [4 ,5 ]
Commereuc, Sophie [4 ,6 ]
机构：
[1] Tomas Bata Univ Zlin, Fac Technol, Dept Polymer Engn, Zlin 76272, Czech Republic
[2] Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Zlin 76001, Czech Republic
[3] Borealis Polyolefine GmbH, A-4021 Linz, Austria
[4] Univ Blaise Pascal, Clermont Univ, LPMM, F-63000 Clermont Ferrand, France
[5] CNRS, UMR 6505, LPMM, F-63177 Aubiere, France
[6] Clermont Univ, ENSCCF, LPMM, F-63000 Clermont Ferrand, France
来源：
POLYMER DEGRADATION AND STABILITY | 2011年 / 96卷 / 10期
关键词：
Isotactic poly(1-butene); Rheology; Infrared spectroscopy; Thermal behaviour; Photodegradation; CRYSTALLIZATION; PHOTOOXIDATION; POLY-1-BUTENE; DECOMPOSITION; POLYPROPYLENE; POLYETHYLENE; POLYMORPHISM; ELASTOMERS; BEHAVIOR; PHOTO;
D O I：
10.1016/j.polymdegradstab.2011.08.001
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 effect of photodegradation in isotactic poly(1-butene) (PB-1) have been investigated using rheology, differential scanning calorimetry and infrared spectroscopy. Two commercially available grades of PB-1 with different average molecular weight were chosen. Specimens prepared by compression moulding were UV irradiated in the interval from 0 to 70 h. UV-induced changes in molecular structure have been followed by evolution of rheological properties, thermal properties and degradation by-products. Thermal analysis showed significant changes in crystallization behaviour influencing morphology and resulting thermal properties. Moreover it has been confirmed that the degradation significantly retards the phase transformation. Rheological measurement has been found as an effective method for determination of early stages of photodegradation of PB-1. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1740 / 1744
页数：5
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