Premium
The Comparison of the Ringed Spherulite Morphology of PCL Blends with Poly(vinyl chloride), Poly(bisphenol A carbonate) and Poly(hydroxyether of bisphenol A)
Author(s) -
Ma Dezhu,
Zhang Jianbin,
Wang Mozhen,
Ma Jingwen,
Luo Xiaolie
Publication year - 2001
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(20010401)202:7<961::aid-macp961>3.0.co;2-q
Subject(s) - spherulite (polymer physics) , differential scanning calorimetry , materials science , bisphenol a , polymer chemistry , crystallization , vinyl chloride , morphology (biology) , polymer blend , bisphenol , miscibility , chemical engineering , composite material , copolymer , polymer , epoxy , physics , genetics , biology , thermodynamics , engineering
The crystallization and ringed spherulite morphology of poly( ε ‐caprolactone) (PCL) in the miscible blends of PCL/poly(vinyl chloride) (PVC), PCL/poly(hydroxyether of bisphenol A) (phenoxy resin) and PCL/poly(bisphenol A carbonate) (PC) were investigated by differential scanning calorimetry (DSC) and polarized light microscopy (PLM). Through the comparison of the PCL crystalline morphology with the interaction energy density B between the miscible components in these blends, it was found that the addition of the non‐crystallizable component had great effect on the regularity of the ringed spherulite, which was coincided with the change of the interaction energy density B. To grow regular ringed spherulites in the PCL miscible blends, it was most important that the crystallization rate of PCL in the blends must be matched with the diffusion rate of the non‐crystallizable component. Such a matching relation in the process of the ringed spherulite growth was a most important condition for the regular twisting of PCL lamellae.