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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00431055" target="_blank" >RIV/61389013:_____/14:00431055 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.polymer.2014.06.002" target="_blank" >http://dx.doi.org/10.1016/j.polymer.2014.06.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymer.2014.06.002" target="_blank" >10.1016/j.polymer.2014.06.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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-functionalnanofiller, 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 co

Název v anglickém jazyce

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

Popis výsledku anglicky

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-functionalnanofiller, 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 co

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F11%2F2151" target="_blank" >GAP108/11/2151: Nové nanokompozitní pryskyřice obsahující funkcionalizované stannoxanové nanočástice</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer

ISSN

0032-3861

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

3498-3515

Kód UT WoS článku

000340812300026

EID výsledku v databázi Scopus

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