Influence of montmorillonite nano-dispersion on polystyrene photo-oxidation

被引：22
作者：
Bottino, F. A. [1 ,2 ]
Di Pasquale, G. [1 ,2 ]
Fabbri, E. [3 ,4 ]
Orestano, A. [1 ,2 ]
Pollicino, A. [1 ,2 ]
机构：
[1] Univ Catania, Dipartimento Metodol Fis & Chim Ingn, I-95125 Catania, Italy
[2] Univ Catania, Unita Locale INSTM, I-95125 Catania, Italy
[3] Univ Modena & Reggio Emilia, Dipartimento Ingn Mat & Ambiente, I-41100 Modena, Italy
[4] Univ Catania, Unita Locale INSTM, I-95125 Catania, Italy
来源：
POLYMER DEGRADATION AND STABILITY | 2009年 / 94卷 / 03期
关键词：
Nanocomposite; Polystyrene; Montmorillonite; Photo-oxidation; POLYMER-CLAY NANOCOMPOSITES; POLYPROPYLENE/MONTMORILLONITE NANOCOMPOSITES; POLY(METHYL METHACRYLATE); THERMAL-DEGRADATION; BEHAVIOR; POLYPROPYLENE; MECHANISMS;
D O I：
10.1016/j.polymdegradstab.2008.12.002
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
UV photo-oxidative degradation of polystyrene/montmorillonite nanocomposites (PS/o-MMTs) and microcomposite (PS/Na/MMT), obtained via in situ bulk polymerization, has been studied in accelerated conditions. Imidazolium or standard alkylammonium surfactants were used to modify MMT. The chemical modification resulting from photo-oxidation has been followed using infrared spectroscopy The rate of photo-oxidation of PS/o-MMT and PS/Na/MMT was faster than that of pristine PS. The results suggest that the photo-oxidative instability could be related to the degree of exfoliation and then to the presence of catalytic active sites on the MMT layer Surface. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：369 / 374
页数：6
相关论文
共 34 条
[1]   Kinetic study of the thermal degradation of PS/MMT nanocomposites prepared with imidazolium surfactants [J].
Abate, L. ;
Blanco, I. ;
Bottino, F. A. ;
Di Pasquale, G. ;
Fabbri, E. ;
Orestano, A. ;
Pollicino, A. .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2008, 91 (03) :681-686
[2]   Polymer-clay nanocomposites: Free-radical grafting of polystyrene on to organophilic montmorillonite interlayers [J].
Akelah, A ;
Moet, A .
JOURNAL OF MATERIALS SCIENCE, 1996, 31 (13) :3589-3596
[3]   Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].
Alexandre, Michael ;
Dubois, Philippe .
Materials Science and Engineering: R: Reports, 2000, 28 (1-2) :1-63
[4]   Modeling the phase behavior of polymer/clay nanocomposites [J].
Balazs, AC ;
Singh, C ;
Zhulina, E ;
Lyatskaya, Y .
ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (08) :651-657
[5]   Polystyrene-clay nanocomposites prepared with polymerizable imidazolium surfactants [J].
Bottino, FA ;
Fabbri, E ;
Fragalà, IL ;
Malandrino, G ;
Orestano, A ;
Pilati, F ;
Pollicino, A .
MACROMOLECULAR RAPID COMMUNICATIONS, 2003, 24 (18) :1079-1084
[6]   Synthesis of polystyrene-clay nanocomposites [J].
Fu, X ;
Qutubuddin, S .
MATERIALS LETTERS, 2000, 42 (1-2) :12-15
[7]   Polymer-clay nanocomposites: exfoliation of organophilic montmorillonite nanolayers in polystyrene [J].
Fu, X ;
Qutubuddin, S .
POLYMER, 2001, 42 (02) :807-813
[8]   SWELLING BEHAVIOR OF MONTMORILLONITE BY POLY-6-AMIDE [J].
FUKUSHIMA, Y ;
OKADA, A ;
KAWASUMI, M ;
KURAUCHI, T ;
KAMIGAITO, O .
CLAY MINERALS, 1988, 23 (01) :27-34
[9]   PHOTOOXIDATION MECHANISMS OF STYRENIC POLYMERS [J].
GARDETTE, JL ;
MAILHOT, B ;
LEMAIRE, J .
POLYMER DEGRADATION AND STABILITY, 1995, 48 (03) :457-470
[10]   Flammability properties of polymer - Layered-silicate nanocomposites. Polypropylene and polystyrene nanocomposites [J].
Gilman, JW ;
Jackson, CL ;
Morgan, AB ;
Harris, R ;
Manias, E ;
Giannelis, EP ;
Wuthenow, M ;
Hilton, D ;
Phillips, SH .
CHEMISTRY OF MATERIALS, 2000, 12 (07) :1866-1873
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