In situ polymerized poly(butylene succinate)/silica nanocomposites: Physical properties and biodegradation
作者： Sang-Il Han , Jung Seop Lim , Dong Kook Kim , Mal Nam Kim , Seung Soon Im
DOI: 10.1016/J.POLYMDEGRADSTAB.2008.02.007
关键词: Polybutylene succinate 、 Concentration effect 、 Composite material 、 Polymerization 、 Ultimate tensile strength 、 Materials science 、 Chemical engineering 、 Crystallinity 、 Polymer 、 Nanocomposite 、 In situ polymerization
摘要: Abstract A series of poly(butylene succinate)/silica (PBS/silica) nanocomposites were prepared by in situ polymerization. Solid-state 29 Si NMR and FTIR analysis indicated that silanol-bonded carbonyl groups are established within PBS/silica nanocomposite materials. Rheological effects inherent to the silica filler evaluated melt rheological as a function shear force molten state. Despite high force, maintained relatively viscosity, attributable network structure resulting from covalent bonding between polymer chain. Nanocomposite material containing 3.5 wt% exhibited greatly improved mechanical properties. The tensile strength at break elongation ca. 38.6 MPa 515%, while those parent PBS 26.3 MPa 96%, respectively. showed composition dependency on biodegradation ascribable reduced crystallinity preferential microbial attack.
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