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Miscibility and specific interactions in blends of poly(2‐ethyl‐2‐oxazoline) with hydroxylated polymethacrylates
Author(s) -
Isasi José R.,
Meaurio Emilio,
Cesteros Carlos,
Katime Issa
Publication year - 1996
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.1996.021970219
Subject(s) - miscibility , polymer chemistry , oxazoline , polymer science , materials science , compatibilization , organic chemistry , chemistry , polymer blend , copolymer , polymer , catalysis
The compatibility of blends of poly(2‐ethyl‐2‐oxazoline) (PEOX) with poly(2‐hydroxyethyl methacrylate) (PHEMA) and poly(2‐hydroxypropyl methacrylate) (PHPMA) was investigated by means of differential thermal analysis and infrared spectroscopy. Calorimetric results show single glass transition temperatures in the entire range of compositions for both systems. S‐shaped curves are obtained when plotting the glass transition temperatures vs. blend compositions. IR analysis of blends reveals the existence of specific interactions via hydrogen bonding between the carbonyl and hydroxyl groups of PHEMA and PHPMA. The association phenomena were quantitatively studied from room temperature up to 180°C with the aid of spectral subtraction techniques.