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Thermal, Mechanical, and Surface Properties of Poly(2‐ N ‐alkyl‐2‐oxazoline)s
Author(s) -
Rettler Erik F.J.,
Kranenburg Johannes M.,
LambermontThijs Hanneke M.L.,
Hoogenboom Richard,
Schubert Ulrich S.
Publication year - 2010
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.201000338
Subject(s) - cationic polymerization , polymer , materials science , alkyl , monomer , polymer chemistry , side chain , glass transition , phase transition , phase (matter) , thermal , amorphous solid , oxazoline , composite material , crystallography , chemistry , thermodynamics , organic chemistry , physics , catalysis
Thermal, mechanical, and surface properties of a library of poly(2‐oxazoline)s are investigated. These polymers are suitable to study structure/property relationships as their cationic ROP and the relative facile monomer synthesis allow for control over the molecular structure. The number of carbon atoms in the linear side‐chain is systematically varied from methyl to nonyl. Relations between chemical structures, thermal transitions, surface energies, and elastic moduli are discussed. It is shown that the mechanical and thermal properties of the polymers depend on the presence of a crystalline phase in the material. The amorphous polymers reveal a decrease in the reduced moduli along with a decrease in their respective glass transition temperature with increasing length of the side‐chain.