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Titolo:
Optimum toughening via a bicontinuous blending: toughening of PPO with SEBS and SEBS-g-maleic anhydride
Autore:
Wang, XD; Feng, W; Li, HQ; Ruckenstein, E;
Indirizzi:
SUNY Buffalo, Dept Chem Engn, Buffalo, NY 14260 USA SUNY Buffalo Buffalo NY USA 14260 , Dept Chem Engn, Buffalo, NY 14260 USA Beijing Inst Chem Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China Beijing Inst Chem Technol Beijing Peoples R China 100029 Peoples R China
Titolo Testata:
POLYMER
fascicolo: 1, volume: 43, anno: 2002,
pagine: 37 - 43
SICI:
0032-3861(200201)43:1<37:OTVABB>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDE) POLYAMIDE BLENDS; POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE); POLYMER BLENDS; POLYSTYRENE; MORPHOLOGY; NYLON-6; DERIVATIVES; COPOLYMERS; EXTRUSION; BEHAVIOR;
Keywords:
poly(2,6-dimethyl-1,4-phenylene oxide); styrene-b-ethylene/butadiene-b-styrene triblock copolymer; toughening;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Ruckenstein, E SUNY Buffalo, Dept Chem Engn, Furnas Hall, Buffalo, NY 14260 USA SUNY Buffalo Furnas Hall Buffalo NY USA 14260 NY 14260 USA
Citazione:
X.D. Wang et al., "Optimum toughening via a bicontinuous blending: toughening of PPO with SEBS and SEBS-g-maleic anhydride", POLYMER, 43(1), 2002, pp. 37-43

Abstract

The poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) was toughened by melt extrusion through its blending with a styrene-b-ethylene/butadiene-b-styrene triblock copolymer (SEBS), or with maleic anhydride (MA) grafted SEBS (SEBS-g-MA). Their morphology, mechanical properties, and rheology have been investigated. Transmission electron microscopy revealed that both kinds of blends had an island-sea structure at low concentrations of SEBS or SEBS-g-MA and a bicontinuous one at sufficiently high concentrations. However, the percolation threshold was higher for SEBS than for the SEBS-g-MA. The Izod impact strength of PPO could be significantly improved through its blending with SEBS-g-MA, particularly in a blend with 20 wt% of SEBS-g-MA at which it had a maximum value. The rheological experiments indicated that the incorporation of SEBS increased and that of SEBS-g-MA decreased the melt viscosityof the system. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 05/06/20 alle ore 06:27:47