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Hydrophilic Films Based on Blends of Poly(acrylic acid) and Poly(2‐hydroxyethyl vinyl ether): Thermal, Mechanical, and Morphological Characterization
Author(s) -
Khutoryanskiy Vitaliy V.,
Cascone Maria Grazia,
Lazzeri Luigi,
Barbani Nicoletta,
Nurkeeva Zauresh S.,
Mun Grigoriy A.,
Bitekenova Asem B.,
Dzhusupbekova Aizhana B.
Publication year - 2003
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200390017
Subject(s) - differential scanning calorimetry , glass transition , materials science , dynamic mechanical analysis , polymer chemistry , acrylic acid , polymer , vinyl ether , ether , thermal analysis , scanning electron microscope , chemical engineering , composite material , copolymer , chemistry , thermal , organic chemistry , physics , meteorology , engineering , thermodynamics
Hydrophilic films based on blends of poly(acrylic acid) and poly(2‐hydroxyethyl vinyl ether) were prepared by casting. The characterization of the films was performed by differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), and scanning electron microscopy (SEM). It was shown that an increase of poly(2‐hydroxyethyl vinyl ether) content in the blends considerably decreases the glass transition temperature of the samples. The films containing 10 and 20 mol‐% of poly(2‐hydroxyethyl vinyl ether) show behavior of polymers in the glassy state, but a further increase of nonionic polymer content in the blend (30–50 mol‐%) provides the mechanical properties typical of a rubbery state. The content of water traces in the films has a significant effect on the mechanical properties of the materials.Normalized DSC thermograms of PAA:PHEVE films. [PAA]:[PHEVE] = 90:10 (1), 80:20 (2), 70:30 (3), 60:40 (4), 50:50 mol‐% (5).