Answers are grounded in this paper and cite their sources.
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 CO 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.
No takes yet. Share an insight, caveat, or question.
Fei et al. (2004) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: