FTIR study of poly(propylene carbonate)/bisphenol A blends
Data(s) |
2004
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Resumo |
A systematic investigation by FTIR spectroscopy was undertaken on blends of poly(propylene carbonate) (PPC) and bisphenol A (BPA). It provided direct evidence of the hydrogen bond (H-bond) between BPA O-H groups and PPC C=O groups. Using a curve-fitting method, qualitative as well as quantitative information concerning this H-bond interaction was obtained. The inter-H-bond in PPC/BPA blends was weaker than the self-H-bond in BPA. The absorptivities of the free and the H-bonded C=O groups were nearly equal. The fraction of H-bonded C=O in the blends increased with BPA content and leveled off at a value close to 40%. Finally, FTIR-temperature measurements of pure PPC and a representative blend were reported: by monitoring the peak areas of C=O absorptions, the dissociation of the inter-H-bonds and the thermal degradation of PPC were observed. It revealed that the presence of BPA clearly retarded the thermal degradation of PPC. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Fei B;Chen C;Peng SW;Zhao XJ;Wang XH;Dong LS.FTIR study of poly(propylene carbonate)/bisphenol A blends,POLYMER INTERNATIONAL ,2004,53(12):2092-2098 |
Palavras-Chave | #CARBON-DIOXIDE #POLYMER BLENDS #COPOLYMERIZATION #MISCIBILITY #BEHAVIOR |
Tipo |
期刊论文 |