Thermoplastic apparent interpenetrating polymer networks of polyurethane and styrene/acryhc acid block copolymer: Structure-property relationships

Kanapitsas, A; Lebedev, E; Slisenko, O; Grigoryeva, O; Pissis, P

dc.contributor.author	Kanapitsas, A	en
dc.contributor.author	Lebedev, E	en
dc.contributor.author	Slisenko, O	en
dc.contributor.author	Grigoryeva, O	en
dc.contributor.author	Pissis, P	en
dc.date.accessioned	2014-03-01T01:25:23Z
dc.date.available	2014-03-01T01:25:23Z
dc.date.issued	2006	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17646
dc.subject	H-bonding	en
dc.subject	Microheterogeneity	en
dc.subject	Mixed microphase	en
dc.subject	Molecular dynamics	en
dc.subject	Thermoplastic apparent interpenetrating polymer networks	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Dielectric properties	en
dc.subject.other	Differential scanning calorimetry	en
dc.subject.other	Electron density measurement	en
dc.subject.other	Inorganic acids	en
dc.subject.other	Molecular dynamics	en
dc.subject.other	Styrene	en
dc.subject.other	Thermoplastics	en
dc.subject.other	H-bonding	en
dc.subject.other	Microheterogeneity	en
dc.subject.other	Mixed microphase	en
dc.subject.other	Thermoplastic apparent interpenetrating polymer networks	en
dc.subject.other	Polyurethanes	en
dc.subject.other	acrylic acid	en
dc.subject.other	calorimetry	en
dc.subject.other	copolymer	en
dc.subject.other	depolymerization	en
dc.subject.other	polyurethane	en
dc.subject.other	thermogravimetry	en
dc.subject.other	thermoplastic fiber	en
dc.subject.other	thermoplastic polymer	en
dc.title	Thermoplastic apparent interpenetrating polymer networks of polyurethane and styrene/acryhc acid block copolymer: Structure-property relationships	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.23093	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.23093	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Thermoplastic apparent interpenetrating polymer networks (t-AIPNs) of crystallizable polyurethane (CPU) and a styrene/acrylic acid block copolymer (S-b-AA, acid form) of several compositions were prepared by casting from a common solvent. A variety of experimental techniques, including size exclusion chromatography (SEC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), broadband dielectric relaxation spectroscopy (DRS), thermally stimulated depolarization currents (TSDC), and density measurements were employed to investigate structure-property relationships of the t-AIPNs. Special attention was paid to the investigation of molecular dynamics of the CPU component in the t-AIPNs, by combination of the dielectric DRS and TSDC techniques, as well as from the methodological point of view, to the prospects of morphological characterization by broadband DRS. The results show that the CPU/S-b-AA t-AIPNs studied can be considered as multiphase systems having at least two amorphous and one crystalline phases, as well as regions of mixed compositions. Their properties are determined by the heterogeneity of the individual components, as well as by the heterogeneity caused by the thermodynamic incompatibility of these components. The degree of incompatibility is determined, to a large extent, by the intermolecular hydrogen bonding between the functional groups of the CPU and the S-b-AA components (ester groups and COOH-groups, respectively), which is more effective on addition of small amounts of either of the components. (c) 2006 Wiley Periodicals, Inc.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.23093	en
dc.identifier.isi	ISI:000237753100029	en
dc.identifier.volume	101	en
dc.identifier.issue	2	en
dc.identifier.spage	1021	en
dc.identifier.epage	1035	en