Dynamics of diblock co-polymers composed from a side-chain liquid-crystalline and a crystallizable block. A dielectric spectroscopy study
| dc.contributor.author | Mierzwa, M. | en |
| dc.contributor.author | Floudas, G. | en |
| dc.contributor.author | Wewerka, A. | en |
| dc.date.accessioned | 2015-11-24T18:29:53Z | |
| dc.date.available | 2015-11-24T18:29:53Z | |
| dc.identifier.issn | 0022-3093 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16309 | |
| dc.rights | Default Licence | - |
| dc.subject | relaxation | en |
| dc.subject | behavior | en |
| dc.title | Dynamics of diblock co-polymers composed from a side-chain liquid-crystalline and a crystallizable block. A dielectric spectroscopy study | en |
| heal.abstract | We have investigated the dynamics in two side-chain liquid crystalline derivatives of poly(norbornene diethylester) and their co-polymers with the semicrystalline block polyoctene by dielectric spectroscopy within the temperature range 170-433 K. The structure investigation revealed the formation of a nematic and a smectic A phase, respectively, in the Side-chain polymer liquid crystals (SC-PLC) homopolymers and the co-polymers with the shorter and longer spacers, respectively. Multiple relaxation processes were found in both the homopolymers and the co-polymers. The dynamics in the co-polymer with the longer spacer forming the smectic phase were reminiscent to the corresponding SC-PLC homopolymer, indicating strong microphase separation. However, in the co-polymer with the shorter spacer of the SC-PLC block forming the nematic phase, there was evidence for dynamic mixing between the dissimilar blocks which explains the reduced transition temperature of the SC-PLC block and the absence of crystallization of the polyoctene block. (C) 2002 Elsevier Science B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000176261600020 | - |
| heal.journalName | Journal of Non-Crystalline Solids | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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