Article (Scientific journals)
Molecular design of multicomponent polymer systems. XVIII: Emulsification of high‐impact polystyrene and low density polyethylene blends into high‐impact alloys
Fayt, Roger; Teyssié, Philippe
1990In Polymer Engineering and Science, 30 (16), p. 937-943
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Keywords :
Block Copolymers--Evaluation; Microscopic Examination--Scanning Electron Microscopy; Plastics--Mechanical Properties; Polyethylenes--Low Density; Polystyrenes--Blending; Blend Morphology; High Impact Alloys; Hips/LDPE Blends; Impact Properties Modification; Plastics Blends
Abstract :
[en] The interfacial activity of a hydrogenated polybutadiene‐polystyrene tapered diblock copolymer, (HPB‐b‐PS) is investigated in blends of a low density polyethylene (LDPE) with a high impact polystyrene (HIPS) prepared in the melt state on a two‐roll mill. Optical and scanning electron microscopy examinations of smoothed or fracture surfaces and also surfaces obtained after THF‐extraction of PS phases demonstrate that the copolymer promotes the dispersion and interfacial adhesion of the components, whatever the composition and is able to create and stabilize particular dispersions of the rubber particles in these blends. Tensile and Charpy impact properties are also very significantly improved. All these features demonstrate that the ductility and toughness of PS and LDPE/PS blends can be closely controlled by adequate combinations of rubber particles and a HPB‐b‐PS copolymer. Copyright © 1990 Society of Plastics Engineers
Disciplines :
Chemistry
Author, co-author :
Fayt, Roger;  Université de Liège - ULiège > Laboratory of Macromolecular Chemistry and Organic Catalysis
Teyssié, Philippe ;  Université de Liège - ULiège > Relations académiques et scientifiques (Sciences)
Language :
English
Title :
Molecular design of multicomponent polymer systems. XVIII: Emulsification of high‐impact polystyrene and low density polyethylene blends into high‐impact alloys
Publication date :
1990
Journal title :
Polymer Engineering and Science
ISSN :
0032-3888
eISSN :
1548-2634
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
30
Issue :
16
Pages :
937-943
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 December 2019

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