The blends of poly(beta-hydroxybutyrate-co-beta-hydroxyvalerate) (P(HB-co-HV)/poly(p-vinylphenol)(PVPh) were investigated by differential scanning calorimetry (DSC), Fourier transform IR (FT-IR) spectroscopy and high-resolution solid-state C-13 NMR techniques. Single glass transition temperatures existing in the whole composition range indicates that these blends are miscible. The presence of hydrogen bonding between the hydroxyl of PVPh and carbonyl of P(HB-co-HV), shown by FT-IR spectra, is the origin of the miscibility. Furthermore, results obtained by high-resolution solid-state C-13 NMR give more information about the structure of the blends. (C) 1998 Elsevier Science Ltd. All rights reserved.
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Huaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R ChinaHuaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R China
Ding, Guangzhu
Cui, Kun
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Huaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R ChinaHuaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R China
Cui, Kun
Liu, Jieping
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Huaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R ChinaHuaibei Normal Univ, Coll Chem & Mat Sci, Dept Chem, Huaibei City 235000, Peoples R China