摘要
ＰＨＢ／ＰＶＰｈ共混体系的相容性及分子间的特殊相互作用邢佩祥，董丽松，冯汉桥，安玉贤，庄宇钢，冯之榴（中国科学院长春应用化学研究所高分子物理开放实验室，长春，１３００２２；中国科学院武汉物理研究所波谱与原子分子实验室）关键词氢键，相容性，聚（β－羟基...
The miscibility and specific interactions in poly(β-hydroxybutyrate)(PHB)/poly(p-vinylphenol)(PVPh)blends were studied by differential scanning calorimetry)DSC),fourier transform infrared(FTIR)spectrometer and high resolution solid state 13C NMR.A single composition-dependent glass transition temperatures were obtained by DSC which indicate the blends of PHB/PVPh were miscible in the melt state.The experimental glass transition temperatures were fitted quite well with those obtained from Couchman-Karasz equation.The FTIR study shows that the strong intermolecular hydrogen bonding exists in blends of PHB with strong proton acceptor and PVPh with strong proton donor and is the origin of its compatibility.The CPMAS 13C NMR spectra also show that the strong hydrogen bonding exists in PHB/PVPh blends.From the relaxation time it follows that the blends of PHB/PVPh(40/60,20/80)studied are completely homogeneous on the scale of about 3.2 nm.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第11期1813-1815,共3页
Chemical Journal of Chinese Universities
基金
国家科委基础性重大关键项目
关键词
氢键
相容性
共混聚合物
PHV
PVPh
Hydrogen bonding,Miscibility,(β-hydroxybutyrate),Poly(p-vinylphenol)
