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Influence of Molecular Characteristics on Dielectric Relaxation of Propylene Glycol Oligomers
Author(s) -
Prevosto Daniele,
Capaccioli Simone,
Lucchesi Mauro,
Rolla Pierangelo
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200451415
Subject(s) - polypropylene glycol , relaxation (psychology) , dielectric , materials science , glass transition , polymer chemistry , polypropylene , molecular dynamics , dielectric spectroscopy , chemical engineering , polymer , composite material , chemistry , organic chemistry , computational chemistry , polyethylene glycol , optoelectronics , psychology , social psychology , electrode , electrochemistry , engineering
The relaxation dynamics of polypropylene glycol oligomers having different end groups was studied by broadband dielectric spectroscopy (10 mHz to 10 GHz) in the temperature interval 110‐350 K, above and below the glass transition.?The effects produced on structural and secondary?relaxations by the different end groups are discussed.