Polymer-Nanoparticle Composites Composed of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Coated Silver Nanoparticles
文献类型： 外文期刊
作者： Min, Minghua 1 ; Shi, Yuyuan; Ma, Haiyou 1 ; Huang, Hongliang 1 ; Shi, Jiangao 1 ; Chen, Xiaoxue 1 ; Liu, Yongli 1 ; W 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab East China Sea & Ocean Fishery Resources, Minist Agr, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
2.Chinese Acad Fishery Sci, Key Lab East China Sea & Ocean Fishery Resources, Minist
关键词： coated silver nanoparticles;dynamic crystallization;nanocomposite;poly (3-hydroxybutyrate-co-3-hydroxyvalerate);thermal stability
期刊名称：JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS （ 影响因子：1.504； 五年影响因子：1.388 ）
ISSN： 0022-2348
年卷期： 2015 年 54 卷 4 期
页码：
收录情况： SCI
摘要： The effects of addition of synthesized organic-suspension silver nanoparticles on the crystallization and thermal stability of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) were studied by transmission electron microscopy (TEM), differential scanning calorimetry (DSC), wide-angle X-ray diffraction (XRD), UV-Vis absorption spectroscopy, polarized optical microscopy (POM), and thermal gravimetric analysis (TGA). The TEM images showed the average primary size of the as-synthesized silver nanoparticles, coated with a monolayer of the surfactants consisting of oleic acid and an alkylamine, was about 5 nm with narrow distribution, and that they were uniformly dispersed in n-heptane. PHBV/silver nanocomposites were prepared by melt mixing in an internal mixer and then injection molded into rectangle-shaped specimens by a labscale injection molding device. The coated silver nanoparticles showed a homogenuous dispersion in the PHBV matrix when the content of coated silver nanoparticles was about 1%. Both the DSC and POM data showed the efficient heterogeneous nucleation by the coated silver nanoparticles for facilitating PHBV crystallization. The thermal stability of the PHBV/silver nanocomposites improved with the increase in the content of the coated silver nanoparticles.
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