Miscibility of poly(butyl acrylate)-poly(butyl methacrylate) sequential interpenetrating polymer networks

Meseguer Duenas, JM; Torres Escuriola, D; Gallego Ferrer, G; Monleon Pradas, M; Gomez Ribelles, JL; Pissis, P; Kyritsis, A

dc.contributor.author	Meseguer Duenas, JM	en
dc.contributor.author	Torres Escuriola, D	en
dc.contributor.author	Gallego Ferrer, G	en
dc.contributor.author	Monleon Pradas, M	en
dc.contributor.author	Gomez Ribelles, JL	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Kyritsis, A	en
dc.date.accessioned	2014-03-01T01:16:45Z
dc.date.available	2014-03-01T01:16:45Z
dc.date.issued	2001	en
dc.identifier.issn	0024-9297	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14197
dc.subject	Butyl Acrylate	en
dc.subject	Interpenetrating Polymer Network	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Molecular mobility	en
dc.subject.other	Crosslinking	en
dc.subject.other	Dielectric relaxation	en
dc.subject.other	Dynamic mechanical analysis	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Extrapolation	en
dc.subject.other	Molecular weight	en
dc.subject.other	Polyacrylates	en
dc.subject.other	Solubility	en
dc.subject.other	Spectrum analysis	en
dc.subject.other	Synthesis (chemical)	en
dc.subject.other	Interpenetrating polymer networks	en
dc.title	Miscibility of poly(butyl acrylate)-poly(butyl methacrylate) sequential interpenetrating polymer networks	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/ma002046i	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ma002046i	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	The aim of this work is to study by means of dielectric and dynamic-mechanical techniques the miscibility and molecular mobility of sequential interpenetrating polymer networks (IPNs). Sequential poly(butyl acrylate)/poly(butyl methaerylate) interpenetrating networks with different cross-linking densities were prepared using ethylene glycol dimethacrylate as cross-linking agent. Loosely cross-linked IPNs undergo phase separation, as detected by the occurrence of two clearly differentiated main dielectric and dynamic-mechanical relaxation processes corresponding to the two components. Forced compatibilization phenomenon appears in the highly cross-linked IPNs. The IPN cross-linked with 10% EGDMA shows a single main dynamic-mechanical relaxation process. Only the a main relaxation process appears in the PBA networks within the temperature range of the experiments conducted in this work. The dielectric relaxation spectrum of PBMA, networks shows the well-known beta and a relaxation processes, which coalesce in a single alpha beta relaxation in the merging region. In the compatibilized IPNs, both the a and the beta relaxation shift toward lower temperatures as the amount of PBA segments in the IPN increases. The merging region shifts toward lower temperatures as well. In addition to these relaxation processes originated by the homogeneous mixture of PBA and PBMA segments, the IPNs containing more than 50% PBA also show the main PBA's dielectric relaxation process slightly shifted toward higher temperatures. This fact implies that an important part of the PBMA segments is mixed with PBA at the molecular level.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Macromolecules	en
dc.identifier.doi	10.1021/ma002046i	en
dc.identifier.isi	ISI:000170152200027	en
dc.identifier.volume	34	en
dc.identifier.issue	16	en
dc.identifier.spage	5525	en
dc.identifier.epage	5534	en