Porous poly(2-hydroxyethyl acrylate) hydrogels

Monleon Pradas, M; Gomez Ribelles, JL; Serrano Aroca, A; Gallego Ferrer, G; Suay Anton, J; Pissis, P

dc.contributor.author	Monleon Pradas, M	en
dc.contributor.author	Gomez Ribelles, JL	en
dc.contributor.author	Serrano Aroca, A	en
dc.contributor.author	Gallego Ferrer, G	en
dc.contributor.author	Suay Anton, J	en
dc.contributor.author	Pissis, P	en
dc.date.accessioned	2014-03-01T01:16:57Z
dc.date.available	2014-03-01T01:16:57Z
dc.date.issued	2001	en
dc.identifier.issn	0032-3861	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14288
dc.subject	Diffusion	en
dc.subject	Porous hydrogels	en
dc.subject	Water sorption	en
dc.subject.classification	Polymer Science	en
dc.subject.other	acrylic acid derivative	en
dc.subject.other	alcohol	en
dc.subject.other	copolymer	en
dc.subject.other	solvent	en
dc.subject.other	water	en
dc.subject.other	article	en
dc.subject.other	diffusion coefficient	en
dc.subject.other	hydrogel	en
dc.subject.other	polymerization	en
dc.subject.other	scanning electron microscopy	en
dc.subject.other	synthesis	en
dc.subject.other	temperature dependence	en
dc.subject.other	water transport	en
dc.title	Porous poly(2-hydroxyethyl acrylate) hydrogels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0032-3861(00)00742-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0032-3861(00)00742-4	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	Porous hydrogels were prepared by copolymerisation of 2-hydroxyethyl acrylate and ethyleneglycol dimethacrylate (as crosslinking agent) in solution using water or ethanol as solvents. Macroscopic pores are formed due to the segregation of the solvent from the polymer network during the polymerisation process. In the dry state the polymer network had nearly the same density as the poly(2-hydroxyethyl acrylate) polymerised in bulk thus showing that the pores collapse during the drying process. When the dry samples were swollen in water the pores opened and the volume fraction of pores could be determined by weighing. The pore morphology was observed by scanning electron microscopy. The dependence of the pore size on the solvent used and on the monomer/solvent ratio in the polymerisation process is shown. The elastic modulus and loss tangent were measured as a function of temperature in the region of the main (or ct) dynamic-mechanical relaxation process. These spectra were correlated with the morphology of the samples. (C) 2001 Elsevier Science Ltd. all rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Polymer	en
dc.identifier.doi	10.1016/S0032-3861(00)00742-4	en
dc.identifier.isi	ISI:000167050500023	en
dc.identifier.volume	42	en
dc.identifier.issue	10	en
dc.identifier.spage	4667	en
dc.identifier.epage	4674	en