Comparative study of PHBV/TBP and PHBV/BPA blends
Data(s) |
2004
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Resumo |
In order to clarify the effects of phenols on properties of polyesters, the blends of poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBV) with 4,4'-dihydroxydiphenylpropane (BPA) and p-tert-butylphenol (TBP) were studied. The FTIR spectra revealed that there was strong hydrogen-bond (H-bond) interaction between PHBV and both phenols. By evaluating the fraction of H-bonded C = O in the blend, it was concluded that BPA showed a stronger tendency than TBP to form H-bonds with PHBV. Accordingly, BPA formed a stronger suppression than TBP on the crystallization of PHBV. When 30 wt% BPA or 50 wt% TBP were added into PHBV, the crystallization of PHBV was completely suppressed in the DSC cooling scan. As the phenol content was increased, the T-g of PHBV/TBP blend decreased while the T-g of PHBV/BPA blend increased. This difference indicated that TBP and BPA acted as plasticizer and physical crosslinking agent, respectively. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Fei B;Chen C;Wu H;Peng SW;Wang XY;Dong LS.Comparative study of PHBV/TBP and PHBV/BPA blends,POLYMER INTERNATIONAL ,2004,53(7 ):903-910 |
Palavras-Chave | #POLY(3-HYDROXYBUTYRATE-CO-4-HYDROXYBUTYRATE) #POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE) #POLY(3-HYDROXYBUTYRATE) #4 #COPOLYESTERS #4'-THIODIPHENOL |
Tipo |
期刊论文 |