期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 112, 期 47, 页码 14819-14828出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp8063245
关键词
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资金
- Consejo Superior de Investigaciones Cientiffcas (CSIC) [I3PDR-6-02]
- European Social Fund
- European Union sixth Framework Program [NMP3-CT-2005-515840]
- HASYLAB [I-20060118]
- Spanish CICYT [NAN2004-09183-C10-02]
The isothermal crystallization of polyphenylene sulfide (PPS) nanocomposites with inorganic fullerene-like tungsten disulfide nanoparticles (IF-WS2) has been studied from a thermal and morphological point of view, using differential scanning calorimetry (DSC), scanning electron microscopy (SEM), polarized optical microscopy (POM) and time-resolved synchrotron X-ray diffraction. All the analyses revealed that the incorporation of the IF-WS2 altered significantly the crystallization behavior of PPS, in a way strongly dependent with the nanocomposite composition. The addition of IF-WS2 in 0.1 wt % proportion retarded the crystallization of PPS by increasing its fold surface free energy in a 10%. However, addition of the nanoparticles in excess of 1 wt % results in a promotion of the crystallization rate with reduction of the fold surface free energy to half the value of pure PPS.
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