中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (6): 38-41.

• 研究论文 • 上一篇    下一篇

P(HB-co-HV)/PVPh的相容性与聚集态结构

邢佩祥1, 董丽松1, 冯之榴1, 冯汉桥2   

  1. 1. 中国科学院长春应用化学研究所高分子物理联合开放研究实验室, 长春 130022;
    2. 中国科学院武汉物理研究所国家原子与波谱开放实验室, 武汉
  • 收稿日期:1997-06-16 修回日期:1997-08-26 出版日期:1997-12-10 发布日期:1997-12-10
  • 基金资助:
    国家科委基础性研究重大关键项目

Miscibility and Aggregation Structure of Poly(β-hydroxybutyrate-co-β-hydroxyvalerate)/Poly(p-vinylphenol)(P(HB-co-HV)/PVPh)Blends

Xing Peixiang1, Dong Lisong1, Feng Zhiliu1, Feng Hanqiao2   

  1. 1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    2. Laboratory of Magnetic Resonance and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan
  • Received:1997-06-16 Revised:1997-08-26 Published:1997-12-10 Online:1997-12-10

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摘要： 采用差热扫描分析、红外光谱、固体核磁、小角X光散射等方法研究了聚(β-羟基丁酸酯-co-β-羟基戊酸酯(P(HB-co-HV))/聚(对-羟基苯乙烯)(简称PVPh)共混物的相容性和形态。结果表明两组分间形成较强的分子间氢键,形成完全相容的共混体系。固体核磁结果表明P(HB-co-HV)/PVPh(50/50)在3.4nm尺寸上是完全均相的。小角X光散射结果表明,在等温结晶的共混物中无定形的PVPh分子分散在P(HB-co-HV)片晶之间与非晶的P(HB-co-HV)分子形成非晶区,从而使非晶区加宽,长周期增加。

关键词: 聚(β－羟基丁酸酯－co－β－羟基戊酸酯), 聚(对羟基苯乙烯), 相容性, 氢键, 固体核磁

Abstract: The miscibility and aggregation structure of P(HB-co-HV)/PVPh blends have been investigated by DSC, FTIR, 13C NMR, WAXD, SAXS. The results show that the intermolecular hydrogen bonding formed between the components makes the blends completely miscible in the whole composition range in the melt state. The solid state 13C NMR results show that the blend of P(HB-co-HV)/PVPh(50/50)mixed on a scale smaller than 3.4 nm. The SAXS results show that the long periods of the blends increase with the increase of PVPh content, indicating that the amorphous PVPh was dispersed between the lamellae forming the amorphous part with amorphous P(HB-co-HV).

Key words: poly(β-hydroxybutyrate-co-β-hydroxyvalerate), poly(p-vinylphenol), miscibility, hydrogen bonding, solid state 13C NMR

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