Tin-based

Strachota, Adam; Rodzen, Krzysztof; Ribot, F.; Perchacz, Magdalena; Trchová, Miroslava; Steinhart, Miloš; Starovoytova, Larisa; Šlouf, Miroslav; Strachota, Beata

doi:https://dx.doi.org/10.1016/j.polymer.2014.06.002

Number of the records: 1

Tin-based "super-POSS" building blocks in epoxy nanocomposites with highly improved oxidation resistance

1.

SYSNO ASEP	0431055
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Tin-based "super-POSS" building blocks in epoxy nanocomposites with highly improved oxidation resistance
Author(s)	Strachota, Adam (UMCH-V)_{RID, ORCID} Rodzen, Krzysztof (UMCH-V) Ribot, F. (FR) Perchacz, Magdalena (UMCH-V)_RID Trchová, Miroslava (UMCH-V)_{RID, ORCID} Steinhart, Miloš (UMCH-V)_RID Starovoytova, Larisa (UMCH-V)_RID Šlouf, Miroslav (UMCH-V)_{RID, ORCID} Strachota, Beata (UMCH-V)_RID
Source Title	Polymer. - : Elsevier - ISSN 0032-3861 Roč. 55, č. 16 (2014), s. 3498-3515
Number of pages	18 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	nanocomposite ; POSS ; stannoxane
Subject RIV	CD - Macromolecular Chemistry
R&D Projects	GAP108/11/2151 GA ČR - Czech Science Foundation (CSF)
Institutional support	UMCH-V - RVO:61389013
UT WOS	000340812300026
EID SCOPUS	84905438199
DOI	10.1016/j.polymer.2014.06.002
Annotation	A novel tin-based POSS analogue, butylstannoxane dodecamer, was incorporated as chemically active nanofiller in epoxy resins and achieved a considerable anti-oxidative activity already near 0.05 wt% and very high activity near 1 wt%. The amino-functional nanofiller, which bonds as a linear segment, displayed a high reactivity towards the resin components during cure and was very poorly extractable. Interestingly, at elevated temperatures, the stannoxane nanofiller, whose functional substituents are attached by ionic bonds, displays a considerable short-range mobility in the matrix, and in course of a nano-phase-separation process, rearranges and polymerizes to needle-like nano-domains. This effect leads to additional crosslinking in the nanocomposite. This “solid-phase nano-precipitation” does not occur under oxidative conditions, where the nanofiller preferentially undergoes crosslinking with matrix chains and is thereby immobilized. Nanocomposite synthesis, characterization and the concentration dependence of the nanofiller effect are presented.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2015

Number of the records: 1