Crystallinity and Free Volume of Syndiotactic Polystyrene Conditioned in Supercritical Fluids

摘要：

Syndiotactic polystyrene (sPS) possesses complex polymorphism in its semicrystalline state which has been extensively studied by X-ray diffraction (WAXD), Fourier-transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Different crystal structures (α, β, γ and δ can be obtained under different thermal crystallization conditions and environments. Supercritical fluids have the capacity to swell and plasticize glassy polymers and change concequently their molecular mobility and glass transition temperature. In the case of sPS this treatment will lead to specific crystallization conditions different from crystallization under ambient conditions.

作者: Weiming Ma Anna Andersson Jiasong He Frans H.J.Maurer

作者单位: Key Laboratory of Engineering Plastics,Joint Laboratory of Polymer Science and Materials,Institute o Department of Polymer & Materials Chemistry,Lund University,SE-22100 Lund,Sweden

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 12

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）