Poly(imide-amide)-poly(ethylene glycol) hybrid networks: Nanostructure, molecular dynamics and membrane properties

Bershtein, VA; Egorova, LM; Yakushev, PN; Sindelar, V; Sysel, P; Sukhanova, TE; Dobrovolskaya, IP; Grigoriev, AI; Kripotou, S; Pissis, P

dc.contributor.author	Bershtein, VA	en
dc.contributor.author	Egorova, LM	en
dc.contributor.author	Yakushev, PN	en
dc.contributor.author	Sindelar, V	en
dc.contributor.author	Sysel, P	en
dc.contributor.author	Sukhanova, TE	en
dc.contributor.author	Dobrovolskaya, IP	en
dc.contributor.author	Grigoriev, AI	en
dc.contributor.author	Kripotou, S	en
dc.contributor.author	Pissis, P	en
dc.date.accessioned	2014-03-01T02:44:55Z
dc.date.available	2014-03-01T02:44:55Z
dc.date.issued	2007	en
dc.identifier.issn	0170-0839	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32015
dc.subject	Glass Transition	en
dc.subject	Hybrid Network	en
dc.subject	Low Temperature	en
dc.subject	Molecular Dynamic	en
dc.subject	group 1	en
dc.subject	group 2	en
dc.subject	Poly Ethylene Glycol	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Amorphous materials	en
dc.subject.other	Crosslinking	en
dc.subject.other	Crystallization	en
dc.subject.other	Molecular dynamics	en
dc.subject.other	Nanostructured materials	en
dc.subject.other	Polyethylene glycols	en
dc.subject.other	Polymeric membranes	en
dc.subject.other	Air gases	en
dc.subject.other	Amorphos state	en
dc.subject.other	Nanostructural heterogeneity	en
dc.subject.other	Polyamides	en
dc.title	Poly(imide-amide)-poly(ethylene glycol) hybrid networks: Nanostructure, molecular dynamics and membrane properties	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1007/s00289-006-0635-y	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00289-006-0635-y	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Nanometer-scale structure, molecular dynamics (at 100-580 K) and membrane properties were studied in two series of poly(imide-amide) (PIA)-poly(ethylene glycol) (PEG) hybrid networks with regularly varied composition and different lengths of PEG crosslinks (Mn= 1000 or 3400). Combined WAXD/SAXS/polarized microscopy/DSC/DRS/TSDC/creep rate spectroscopy (CRS) analysis of these hybrids was performed. Depending on their composition, semicrystalline or mesomorphous, or amorphous state, and nanostructural heterogeneity were observed for these networks. They could be subdivided into (a) the PIA-rich hybrids with spatially isolated PEG domains, ""suppressed"" dynamics in the PEG glass transition, and PIA domains with Tg=520-570 K (group 1), and (b) the other hybrids with a continuous PEG phase and low-temperature glass transition only (group 2). Heterogeneity in segmental dynamics was revealed by CRS over the temperature range from TgPEG to TgPIA. In the second group of hybrids, the permeability coefficients were higher, by two or three orders of magnitude, for organic vapors than those for air gases. © Springer-Verlag 2007.	en
heal.publisher	SPRINGER	en
heal.journalName	Polymer Bulletin	en
dc.identifier.doi	10.1007/s00289-006-0635-y	en
dc.identifier.isi	ISI:000243051200007	en
dc.identifier.volume	58	en
dc.identifier.issue	1	en
dc.identifier.spage	65	en
dc.identifier.epage	74	en