Influence of nanoclays on the photochemical behaviour of poly(vinyl alcohol)

被引：34
作者：
Gaume, Julien [1 ,2 ]
Rivaton, Agnes [1 ,2 ]
Therias, Sandrine [1 ,2 ]
Gardette, Jean-Luc [1 ,2 ]
机构：
[1] Univ Blaise Pascal, Photochim Mol & Macromol Lab, CNRS, UMR 6505, F-63171 Aubiere, France
[2] Univ Blaise Pascal, Clermont Univ, Photochim Mol & Macromol Lab, F-63000 Clermont Ferrand, France
来源：
POLYMER DEGRADATION AND STABILITY | 2012年 / 97卷 / 04期
关键词：
PVA; Nanocomposite; Montmorillonite; Laponite; UV light irradiation; Degradation; POLYMER/CLAY NANOCOMPOSITES; PHOTOOXIDATION; PVA; DEGRADATION; MONTMORILLONITE; HYDROGELS;
D O I：
10.1016/j.polymdegradstab.2012.01.022
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 photochemical behaviour of poly(vinyl alcohol)/clay nanocomposite films with a natural Montmorillonite clay (MMt-Na+) and a synthetic Laponite clay at varying concentrations (up to 10 wt%) was investigated. Nanocomposite films were exposed to UV-visible light irradiation (lambda > 300 nm) in accelerated ageing conditions in both the presence and absence of oxygen. Under photo-oxidation conditions, the same photoproducts of PVA were formed in the presence of both clays, but a discrepancy in the photo-oxidation rate of PVA was observed for the different clays. MMt-Na+ displays a pro-degradant effect that was influenced by the clay content, whereas Laponite has no influence on the oxidation rate of PVA. However, in the absence of oxygen, both PVA/clay nanocomposites proved to be as photostable as PVA. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：488 / 495
页数：8
相关论文
共 42 条
  • [21] Morlat-Therias S, 2005, CHEM MATER, V17, P1072, DOI [10.1021/cm040172l, 10.1021/cm0401721]
  • [22] Photochemical stabilization of linear low-density polyethylene/clay nanocomposites: Towards durable nanocomposites
    Morlat-Therias, Sandrine
    Fanton, Elisabeth
    Gardette, Jean-Luc
    Dintcheva, Nadka Tzankova
    La Mantia, Francesco P.
    Malatesta, Vincenzo
    [J]. POLYMER DEGRADATION AND STABILITY, 2008, 93 (10) : 1776 - 1780
  • [23] Photooxidation of vulcanized EPDM/montmorillonite nanocomposites
    Morlat-Therias, Sandrine
    Fanton, Elisabeth
    Tomer, Namrata S.
    Rana, Sravendra
    Singh, R. P.
    Gardette, Jean-Luc
    [J]. POLYMER DEGRADATION AND STABILITY, 2006, 91 (12) : 3033 - 3039
  • [24] Swelling and mechanical behavior of modified poly(vinyl alcohol)/laponite nanocomposite membranes
    Nair, Shubhangi H.
    Pawar, Kiran C.
    Jog, Jyoti P.
    Badiger, Manohar V.
    [J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 103 (05) : 2896 - 2903
  • [25] An overview on the degradability of polymer nanocomposites
    Pandey, JK
    Reddy, KR
    Kumar, AP
    Singh, RP
    [J]. POLYMER DEGRADATION AND STABILITY, 2005, 88 (02) : 234 - 250
  • [26] Poly(vinyl alcohol)/clay-based nanocomposite hydrogels: Swelling behavior and characterization
    Paranhos, Caio M.
    Soares, Bluma G.
    Oliveira, Renata N.
    Pessan, Luiz A.
    [J]. MACROMOLECULAR MATERIALS AND ENGINEERING, 2007, 292 (05) : 620 - 626
  • [27] A review on polymer-layered silicate nanocomposites
    Pavlidou, S.
    Papaspyrides, C. D.
    [J]. PROGRESS IN POLYMER SCIENCE, 2008, 33 (12) : 1119 - 1198
  • [28] Photo-oxidative degradation of polyethylene/montmorillonite nanocomposite
    Qin, HL
    Zhao, CG
    Zhang, SM
    Chen, GM
    Yang, MS
    [J]. POLYMER DEGRADATION AND STABILITY, 2003, 81 (03) : 497 - 500
  • [29] Polymer/layered silicate nanocomposites: a review from preparation to processing
    Ray, SS
    Okamoto, M
    [J]. PROGRESS IN POLYMER SCIENCE, 2003, 28 (11) : 1539 - 1641
  • [30] Light-induced degradation of the active layer of polymer-based solar cells
    Rivaton, Agnes
    Chambon, Sylvain
    Manceau, Matthieu
    Gardette, Jean-Luc
    Lamaitre, Noella
    Guillerez, Stephane
    [J]. POLYMER DEGRADATION AND STABILITY, 2010, 95 (03) : 278 - 284
12345