Preparation and characterization of modified graphite oxide/poly (propylene carbonate) composites by solution intercalation

被引：61
作者：
Bian, J. [1 ]
Wei, X. W. [1 ]
Lin, H. L. [1 ]
Gong, S. J. [1 ]
Zhang, H. [1 ]
Guan, Z. P. [2 ]
机构：
[1] Xi Hua Univ, Sch Mat Sci & Engn, Key Lab Special Mat & Preparat Technol, Chengdu 610039, Sichuan, Peoples R China
[2] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
来源：
POLYMER DEGRADATION AND STABILITY | 2011年 / 96卷 / 10期
关键词：
Poly(propylene carbonate) (PPC); Modified graphite oxide (MGO); Composites; Solution intercalation; Properties; MECHANICAL-PROPERTIES; THERMAL-DEGRADATION; NANOCOMPOSITES; MONTMORILLONITE; POLYMERIZATION; EXFOLIATION; FABRICATION;
D O I：
10.1016/j.polymdegradstab.2011.07.013
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Modified graphite oxide (MGO)/Poly (propylene carbonate) (PPC) composites with excellent thermal and mechanical properties have been prepared via a facile solution intercalation method. An intercalated structure of MGO/PPC composites was confirmed by X-ray diffraction and scanning electron microscope. The thermal and mechanical properties of MGO/PPC composites were investigated by thermal gravimetric analysis, differential scanning calorimetric, dynamic mechanical analysis, and electronic tensile tester. Due to the nanometer-sized dispersion of layered graphite in PPC matrix and the strong interfacial interaction between MGO and PPC, the prepared MGO/PPC composites exhibit improved thermal and mechanical properties in comparison with pure PPC. Compared with pure PPC, the MGO/PPC composites show the highest thermal stability and the T-g is 13.8 degrees C higher than that of pure PPC, while the tensile strength (29.51 MPa) shows about 2 times higher than that of pure PPC when only 3.0 wt.% MGO is incorporated. These results indicate that this approach is an efficient method to improve the properties of PPC. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：1833 / 1840
页数：8
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