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Effect of molecular structure of styrene–butadiene block copolymers on morphology, rheological properties, and impact strength of polystyrene/polyethylene blends
Author(s) -
Fortelný Ivan,
Mikešová Jana,
Hromádková Jiřina,
Hašová Věra,
Horák Zdeněk
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.12730
Subject(s) - copolymer , materials science , polystyrene , styrene , rheology , viscoelasticity , izod impact strength test , composite material , styrene butadiene , morphology (biology) , polyethylene , polymer chemistry , polymer , ultimate tensile strength , genetics , biology
The effect of molecular structure of six model styrene–butadiene (SB) block copolymers with various number of blocks and two lengths of styrene blocks on morphology, rheological properties, and impact strength of polystyrene (PS)/high‐density polyethylene (PE) blends was studied. It was found that location of SB copolymers in the blends is determined by the length of styrene blocks. The length of styrene blocks has similar effects on impact strength and linear viscoelastic properties of the blends. On the other hand, the correlation was not found between the effects of a number of blocks on impact strength and linear viscoelastic properties of the blends. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2303–2309, 2003