NDLI: Poly(methyl methacrylate)-block-polystyrene and polystyrene-block-poly(n-butyl acrylate) as compatibilizers in PMMA/PnBA blends

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Poly(methyl methacrylate)-block-polystyrene and polystyrene-block-poly(n-butyl acrylate) as compatibilizers in PMMA/PnBA blends

Content Provider	Scilit
Author	Stenert, Michael Döring, Andreas Bandermann, Friedhelm
Copyright Year	2004
Abstract	The influence of the addition of poly(methyl methacrylate)-blockpolystyrene (PMMA-b-PS) and PS-b-poly(n-butyl acrylate) (PS-b-PnBA) diblock copolymers on the structure and the mechanical properties of PMMA/PnBA polymer blends was investigated. In binary polymer blends of PMMA and PS, and PS and PnBA, and in the ternary system the corresponding diblock copolymers caused a significantly higher distribution of the dispersed phase and an appreciable narrowing of the particle size distribution as shown by scanning force microscopy using the pulsed force mode technique. Transmission electron microscopy images proved that in the ternary system the two diblock copolymers formed no own separate phase but are arranged as a ring layer at the interface between the two homopolymers PMMA and PnBA. Charpy tests demonstrated that the impact strength of the ternary blends is increased by the two diblock copolymers even at low amounts of the latter. The influence on mechanical properties like Young’s modulus, yield stress, and tensile strength at break was less marked as strainstress measurements showed. The major effect seems to be exerted on the elongation at break.
Related Links	http://www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj$002fepoly.2004.4.issue-1$002fepoly.2004.4.1.137$002fepoly.2004.4.1.137.pdf?t:ac=j$002fepoly.2004.4.issue-1$002fepoly.2004.4.1.137$002fepoly.2004.4.1.137.xml
Ending Page	152
Page Count	16
Starting Page	137
ISSN	21974586
e-ISSN	16187229
DOI	10.1515/epoly.2004.4.1.137
Journal	e-Polymers
Issue Number	1
Volume Number	4
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2004-12-01
Access Restriction	Open
Subject Keyword	E-polymers Polymer Science Methacrylate Blends Block Polystyrene Break Butyl Pmma/pnba Journal: e-Polymers, Vol- 4, Issue- 1
Content Type	Text
Resource Type	Article

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