Reactive compatibilization of poly(styrene-ran-acrylonitrile)/poly(ethylene) blends through the acid-epoxy reaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F16%3A00506758" target="_blank" >RIV/61388955:_____/16:00506758 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0297934" target="_blank" >http://hdl.handle.net/11104/0297934</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/app.44178" target="_blank" >10.1002/app.44178</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reactive compatibilization of poly(styrene-ran-acrylonitrile)/poly(ethylene) blends through the acid-epoxy reaction

Popis výsledku v původním jazyce

Two families of acid functional styrene/acrylonitrile copolymers (SAN) for application as dispersed phase barrier materials in poly(ethylene) (PE) were studied. One type is SAN made by nitroxide mediated polymerization (NMP), which was subsequently chain extended with a styrene/tert-butyl acrylate (S/tBA) mixture to provide a block copolymer (number average molecular weight M-n = 36.6 kg mol 21 and dispersity D = 1.34, after which the tert-butyl protecting groups were converted to acid groups (SAN-b-S/AA). The other acid functional SAN is made by conventional radical terpolymerization (SAN-AA). SAN-AA and SAN-b-S/AA were each melt blended with PE grafted with epoxy functional glycidyl methacrylate (PE-GMA) at 160 degrees C in a twin screw extruder (70: 30 wt % PE-GMA: SAN co/terpolymer). The non-reactive PE-g-GMA/SAN blend had a volume to surface area diameter < D >(vs) 53.0 mu m while the reactive blends (via epoxy/acid coupling) (PE-GMA/SAN-b-SAA and PE-GMA/SAN-AA) had < D >(vs) 51.7 mu m and 1.1 mu m, respectively. After thermal annealing, the non-reactive blend coarsened dramatically while the reactive blends showed little signs of coarsening, suggesting that the acid/epoxy coupling was effective for morphological stability. (C) 2016 Wiley Periodicals, Inc.

Název v anglickém jazyce

Reactive compatibilization of poly(styrene-ran-acrylonitrile)/poly(ethylene) blends through the acid-epoxy reaction

Popis výsledku anglicky

Two families of acid functional styrene/acrylonitrile copolymers (SAN) for application as dispersed phase barrier materials in poly(ethylene) (PE) were studied. One type is SAN made by nitroxide mediated polymerization (NMP), which was subsequently chain extended with a styrene/tert-butyl acrylate (S/tBA) mixture to provide a block copolymer (number average molecular weight M-n = 36.6 kg mol 21 and dispersity D = 1.34, after which the tert-butyl protecting groups were converted to acid groups (SAN-b-S/AA). The other acid functional SAN is made by conventional radical terpolymerization (SAN-AA). SAN-AA and SAN-b-S/AA were each melt blended with PE grafted with epoxy functional glycidyl methacrylate (PE-GMA) at 160 degrees C in a twin screw extruder (70: 30 wt % PE-GMA: SAN co/terpolymer). The non-reactive PE-g-GMA/SAN blend had a volume to surface area diameter < D >(vs) 53.0 mu m while the reactive blends (via epoxy/acid coupling) (PE-GMA/SAN-b-SAA and PE-GMA/SAN-AA) had < D >(vs) 51.7 mu m and 1.1 mu m, respectively. After thermal annealing, the non-reactive blend coarsened dramatically while the reactive blends showed little signs of coarsening, suggesting that the acid/epoxy coupling was effective for morphological stability. (C) 2016 Wiley Periodicals, Inc.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Polymer Science

ISSN

0021-8995

e-ISSN

—

Svazek periodika

133

Číslo periodika v rámci svazku

44

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

44178

Kód UT WoS článku

000383356200005

EID výsledku v databázi Scopus

2-s2.0-84979752646