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The effects of hydrogen bonding on the miscibility, complexation and crystallization in blends of crystalline and amorphous components
Author(s) -
Zhou Hui,
Xiang Maoliang,
Chen Wenjie,
Jiang Ming
Publication year - 1997
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/macp.1997.021980312
Subject(s) - miscibility , crystallization , differential scanning calorimetry , polycaprolactone , polymer chemistry , materials science , amorphous solid , hydrogen bond , chemical engineering , polymer , crystallography , chemistry , organic chemistry , molecule , thermodynamics , composite material , physics , engineering
The miscibility and crystallization of blends of poly{styrene‐ co ‐[ p ‐(2,2,2‐trifluoro‐1‐hydroxy‐1‐trifluoromethyl)ethyl‐ a ‐methylstyrene]} (PS(OH)) and polycaprolactone (PCL) have been investigated by viscometry and differential scanning calorimetry. With increasing the hydroxyl content in PS(OH), the transitions from immiscibility to miscibility and then to complexation can be realized. Depending on the states in which the blends exist, a different behavior of PCL crystallization is observed. Crystallization in the immiscible blends, is almost not affected by the presence of PS(OH). In the miscible blends, an apparent depression of crystallization is observed. Particularly, for the blends with a hydroxyl content larger than 8 mol‐% in PS(OH), complete depression of PCL crystallization is found, which can be attributed to a complex formed by pairing segments of PCL and PS(OH).