Homopolymer interfaces reinforced with random copolymers

R. Kulasekere; H. Kaiser; J. F. Ankner; T. P. Russell; H. R. Brown; C. J. Hawker; A. M. Mayes

doi:10.1021/ma960382m

Homopolymer interfaces reinforced with random copolymers

R. Kulasekere, H. Kaiser, J. F. Ankner, T. P. Russell, H. R. Brown, C. J. Hawker, A. M. Mayes

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85 Scopus citations

Abstract

The strengthening of the interface between polystyrene (PS) and poly(methyl methacrylate) (PMMA) using a random copolymer P(S_f-r-MMA_1-f), where f is the fraction of styrene in the copolymer, was investigated. The maximal fracture toughness, measured by crack propagation, was found when f = 0.68. Neutron reflectivity measurements showed that this value of f corresponded to the point where the interfacial broadening on the PS and PMMA sides of the interface was symmetric. The symmetry of broadening and the optimization of the toughness at f = 0.68 are attributable to a composition-dependent segmental interaction parameter.

Original language	English
Pages (from-to)	5493-5496
Number of pages	4
Journal	Macromolecules
Volume	29
Issue number	16
DOIs	https://doi.org/10.1021/ma960382m
State	Published - Jul 29 1996
Externally published	Yes

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title = "Homopolymer interfaces reinforced with random copolymers",

abstract = "The strengthening of the interface between polystyrene (PS) and poly(methyl methacrylate) (PMMA) using a random copolymer P(Sf-r-MMA1-f), where f is the fraction of styrene in the copolymer, was investigated. The maximal fracture toughness, measured by crack propagation, was found when f = 0.68. Neutron reflectivity measurements showed that this value of f corresponded to the point where the interfacial broadening on the PS and PMMA sides of the interface was symmetric. The symmetry of broadening and the optimization of the toughness at f = 0.68 are attributable to a composition-dependent segmental interaction parameter.",

author = "R. Kulasekere and H. Kaiser and Ankner, {J. F.} and Russell, {T. P.} and Brown, {H. R.} and Hawker, {C. J.} and Mayes, {A. M.}",

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T1 - Homopolymer interfaces reinforced with random copolymers

AU - Kulasekere, R.

AU - Kaiser, H.

AU - Ankner, J. F.

AU - Russell, T. P.

AU - Brown, H. R.

AU - Hawker, C. J.

AU - Mayes, A. M.

PY - 1996/7/29

Y1 - 1996/7/29

N2 - The strengthening of the interface between polystyrene (PS) and poly(methyl methacrylate) (PMMA) using a random copolymer P(Sf-r-MMA1-f), where f is the fraction of styrene in the copolymer, was investigated. The maximal fracture toughness, measured by crack propagation, was found when f = 0.68. Neutron reflectivity measurements showed that this value of f corresponded to the point where the interfacial broadening on the PS and PMMA sides of the interface was symmetric. The symmetry of broadening and the optimization of the toughness at f = 0.68 are attributable to a composition-dependent segmental interaction parameter.

AB - The strengthening of the interface between polystyrene (PS) and poly(methyl methacrylate) (PMMA) using a random copolymer P(Sf-r-MMA1-f), where f is the fraction of styrene in the copolymer, was investigated. The maximal fracture toughness, measured by crack propagation, was found when f = 0.68. Neutron reflectivity measurements showed that this value of f corresponded to the point where the interfacial broadening on the PS and PMMA sides of the interface was symmetric. The symmetry of broadening and the optimization of the toughness at f = 0.68 are attributable to a composition-dependent segmental interaction parameter.

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U2 - 10.1021/ma960382m

DO - 10.1021/ma960382m

M3 - Article

AN - SCOPUS:0030195472

SN - 0024-9297

VL - 29

SP - 5493

EP - 5496

JO - Macromolecules

JF - Macromolecules

IS - 16

ER -

Homopolymer interfaces reinforced with random copolymers

Abstract

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