Structure and dynamics in poly(L-lactide) copolymer networks

Sabater I Serra, R; Kyritsis, A; Escobar Ivirico, JL; Andrio Balado, A; Gomez Ribelles, JL; Pissis, P; Salmeron-Sanchez, M

dc.contributor.author	Sabater I Serra, R	en
dc.contributor.author	Kyritsis, A	en
dc.contributor.author	Escobar Ivirico, JL	en
dc.contributor.author	Andrio Balado, A	en
dc.contributor.author	Gomez Ribelles, JL	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Salmeron-Sanchez, M	en
dc.date.accessioned	2014-03-01T01:34:42Z
dc.date.available	2014-03-01T01:34:42Z
dc.date.issued	2010	en
dc.identifier.issn	0303-402X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20804
dc.subject	Copolymer networks	en
dc.subject	Hydrogels	en
dc.subject	Macromers	en
dc.subject	P(L-lactide) diol	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Comonomers	en
dc.subject.other	Complex behavior	en
dc.subject.other	Copolymer networks	en
dc.subject.other	Dielectric relaxation spectroscopy	en
dc.subject.other	Hydroxyethyl acrylate	en
dc.subject.other	L-lactide	en
dc.subject.other	Local dynamics	en
dc.subject.other	Macromers	en
dc.subject.other	Micro-domains	en
dc.subject.other	Poly (l-lactide)	en
dc.subject.other	Relaxation modes	en
dc.subject.other	Structure and dynamics	en
dc.subject.other	Thermally stimulated depolarization currents	en
dc.subject.other	Two component systems	en
dc.subject.other	Water sorption	en
dc.subject.other	Copolymerization	en
dc.subject.other	Differential scanning calorimetry	en
dc.subject.other	Hydrogels	en
dc.subject.other	Sorption	en
dc.subject.other	Spectroscopy	en
dc.subject.other	Organic polymers	en
dc.subject.other	acid anhydride	en
dc.subject.other	acrylic acid 2 hydroxyethyl ester	en
dc.subject.other	copolymer	en
dc.subject.other	polylactide	en
dc.subject.other	polymer	en
dc.subject.other	unclassified drug	en
dc.subject.other	article	en
dc.subject.other	biocompatibility	en
dc.subject.other	biodegradability	en
dc.subject.other	controlled study	en
dc.subject.other	cross linking	en
dc.subject.other	depolarization	en
dc.subject.other	dielectric constant	en
dc.subject.other	differential scanning calorimetry	en
dc.subject.other	hydrophilicity	en
dc.subject.other	molecular dynamics	en
dc.subject.other	phase separation	en
dc.subject.other	polymerization	en
dc.subject.other	priority journal	en
dc.subject.other	spectroscopy	en
dc.subject.other	structure analysis	en
dc.subject.other	temperature dependence	en
dc.subject.other	thermal stimulation	en
dc.title	Structure and dynamics in poly(L-lactide) copolymer networks	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00396-009-2180-3	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00396-009-2180-3	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Poly(L-lactide) networks (PmLA) hydrophilized with different amounts of 2-hydroxyethyl acrylate (HEA) were investigated by dielectric relaxation spectroscopy, thermally stimulated depolarization currents, and differential scanning calorimetry. The incorporation of HEA units in the PmLA network, with the aim of modulating the water sorption capacity of the system, results in a material with a complex behavior. The system consists of phase-separated microdomains richer in one or the other comonomers that constitute the network. Initially, the addition of smalls amount of HEA units in the network gives rise to a one-phase, two-component system; however, when the amount of HEA in the system increases, a new phase (HEA-rich one) is formed containing some mLA chains that modify the main relaxation mode of these domains and the local dynamics of the system. The structure of the system has been analyzed by comparing the relaxational modes in the PmLA and PHEA homonetworks with those in the copolymer networks. © 2010 Springer-Verlag.	en
heal.publisher	SPRINGER	en
heal.journalName	Colloid and Polymer Science	en
dc.identifier.doi	10.1007/s00396-009-2180-3	en
dc.identifier.isi	ISI:000275426800007	en
dc.identifier.volume	288	en
dc.identifier.issue	5	en
dc.identifier.spage	555	en
dc.identifier.epage	565	en