Molecular mobility in biodegradable poly(epsilon-caprolactone)/poly(hydroxyethyl acrylate) networks

Serra, RSI; Kyritsis, A; Ivirico, JLE; Ribelles, JLG; Pissis, P; Salmeron-Sanchez, M

dc.contributor.author	Serra, RSI	en
dc.contributor.author	Kyritsis, A	en
dc.contributor.author	Ivirico, JLE	en
dc.contributor.author	Ribelles, JLG	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Salmeron-Sanchez, M	en
dc.date.accessioned	2014-03-01T02:05:26Z
dc.date.available	2014-03-01T02:05:26Z
dc.date.issued	2011	en
dc.identifier.issn	1292-8941	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29477
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Polymer Science	en
dc.subject.other	DIELECTRIC-RELAXATION SPECTROSCOPY	en
dc.subject.other	INTERPENETRATING POLYMER NETWORKS	en
dc.subject.other	POLYCARBONATE/POLY(EPSILON-CAPROLACTONE) BLENDS	en
dc.subject.other	ISOTHERMAL CRYSTALLIZATION	en
dc.subject.other	AMORPHOUS PHASE	en
dc.subject.other	WATER SORPTION	en
dc.subject.other	HYDROGELS	en
dc.subject.other	TRANSITION	en
dc.subject.other	DYNAMICS	en
dc.subject.other	MISCIBILITY	en
dc.title	Molecular mobility in biodegradable poly(epsilon-caprolactone)/poly(hydroxyethyl acrylate) networks	en
heal.type	journalArticle	en
heal.identifier.secondary	37	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	Poly(epsilon-caprolactone)/poly(hydroxyethyl acrylate) networks have been investigated by thermally stimulated depolarization currents (TSDC) and differential scanning calorimetry (DSC). The introduction of hydrophilic units (HEA) in the system aiming at tailoring the hydrophilicity of the system results in a series of copolymer networks with microphase separation into hydrophobic/hydrophilic domains. Polycaprolactone (PCL) crystallization is prevented by the topological constraints HEA units imposed in such heterogeneous domains. Moreover, the mobility of the amorphous PCL chains is enhanced as revealed by the main relaxation process which becomes faster. The glass transition of PHEA-rich domains shifts to lower temperatures, as the total amount of PCL in the copolymer increases, due to the presence of PCL units within the same region. The behaviour of the copolymer networks swollen with different content of water has been investigated to analyze the interaction between water molecules and hydrophobic/hydrophilic domains and provide further insights into the molecular structure of the system.	en
heal.publisher	SPRINGER	en
heal.journalName	EUROPEAN PHYSICAL JOURNAL E	en
dc.identifier.isi	ISI:000290537800004	en
dc.identifier.volume	34	en
dc.identifier.issue	4	en