Molecular order and dynamics in block copolymers of poly(oxybutylene) and poly(oxyethylene)

Fragiadakis, D; Bouga, M; Kyritsis, A; Pissis, P; Viras, K; Mingvanish, W; Booth, C

dc.contributor.author	Fragiadakis, D	en
dc.contributor.author	Bouga, M	en
dc.contributor.author	Kyritsis, A	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Viras, K	en
dc.contributor.author	Mingvanish, W	en
dc.contributor.author	Booth, C	en
dc.date.accessioned	2014-03-01T02:42:17Z
dc.date.available	2014-03-01T02:42:17Z
dc.date.issued	2003	en
dc.identifier.issn	1022-1360	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30919
dc.subject	α relaxation	en
dc.subject	Block copolymers	en
dc.subject	Dielectric properties	en
dc.subject	Normal mode relaxation	en
dc.subject	Polyethers	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Block copolymers	en
dc.subject.other	Dielectric properties	en
dc.subject.other	Relaxation processes	en
dc.subject.other	Spectroscopy	en
dc.subject.other	Broadband dielectric spectroscopy	en
dc.subject.other	Molecular dynamics	en
dc.subject.other	copolymer	en
dc.subject.other	homopolymer	en
dc.subject.other	polyoxybutylene	en
dc.subject.other	polyoxyethylene	en
dc.subject.other	unclassified drug	en
dc.subject.other	comparative study	en
dc.subject.other	conference paper	en
dc.subject.other	conformation	en
dc.subject.other	controlled study	en
dc.subject.other	crystal structure	en
dc.subject.other	crystallization	en
dc.subject.other	dielectric spectroscopy	en
dc.subject.other	dipole	en
dc.subject.other	geometry	en
dc.subject.other	molecular dynamics	en
dc.subject.other	motion	en
dc.subject.other	spectroscopy	en
dc.subject.other	temperature	en
dc.subject.other	time	en
dc.title	Molecular order and dynamics in block copolymers of poly(oxybutylene) and poly(oxyethylene)	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1002/masy.200390010	en
heal.identifier.secondary	http://dx.doi.org/10.1002/masy.200390010	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	Broadband dielectric spectroscopy (10(-2)-10(9) Hz) was employed to investigate the dynamics of poly(oxybutylene) chains in solid sernicrystalline poly(oxybutylene)-poly(oxyethylene)-poly(oxybutylene) (BEB) triblock copolymers. The results are compared with those obtained for B homopolymers, EB diblocks and EBE triblocks. The B blocks were dipole-inverted in the homopolymers and the EBE triblocks, however not in the EB and the BEB copolymers. The segmental a relaxation, caused by local chain motion, and the normal mode relaxation, due to chain motions of larger length scale, were studied in detail with respect to time scale, relaxation strength and shape of the response. The a relaxation in the BEB copolymers shows similar behavior to that in the other three systems, whereas the normal mode relaxation shows characteristic differences in the four systems.	en
heal.publisher	WILEY-V C H VERLAG GMBH	en
heal.journalName	Macromolecular Symposia	en
dc.identifier.doi	10.1002/masy.200390010	en
dc.identifier.isi	ISI:000182714000005	en
dc.identifier.volume	191	en
dc.identifier.spage	21	en
dc.identifier.epage	30	en