Novel strategy for polymer blend compatibilization: Solid-state shear pulverization

Naomi Furgiuele; Andrew H. Lebovitz; Klementina Khait; John M Torkelson

doi:10.1021/ma990434i

Novel strategy for polymer blend compatibilization: Solid-state shear pulverization

Naomi Furgiuele^*, Andrew H. Lebovitz, Klementina Khait, John M Torkelson

^*Corresponding author for this work

Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

120 Scopus citations

Abstract

Solid-state shear pulverization (S³P) was used to compatibilize a polypropylene/polystyrene blend without adding premade copolymers or conventional functional groups. S³P is done at temperatures below the melt or glass transition. Polymer pellets or flakes undergo compression and high shear/extensional conditions, resulting in fragmentation/fracture into a fine powder without melting. Depending on S³P conditions, chain scission may occur, yielding highly-reactive free radicals at chain ends. Radical combination at interfaces and in highly-mixed regions may yield block copolymers like those achieved with reactive compatibilization during melt mixing of functionalized polymers.

Original language	English (US)
Pages (from-to)	225-228
Number of pages	4
Journal	Macromolecules
Volume	33
Issue number	2
DOIs	https://doi.org/10.1021/ma990434i
State	Published - Jan 1 2000

ASJC Scopus subject areas

Materials Chemistry

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10.1021/ma990434i

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title = "Novel strategy for polymer blend compatibilization: Solid-state shear pulverization",

abstract = "Solid-state shear pulverization (S3P) was used to compatibilize a polypropylene/polystyrene blend without adding premade copolymers or conventional functional groups. S3P is done at temperatures below the melt or glass transition. Polymer pellets or flakes undergo compression and high shear/extensional conditions, resulting in fragmentation/fracture into a fine powder without melting. Depending on S3P conditions, chain scission may occur, yielding highly-reactive free radicals at chain ends. Radical combination at interfaces and in highly-mixed regions may yield block copolymers like those achieved with reactive compatibilization during melt mixing of functionalized polymers.",

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AU - Khait, Klementina

AU - Torkelson, John M

PY - 2000/1/1

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N2 - Solid-state shear pulverization (S3P) was used to compatibilize a polypropylene/polystyrene blend without adding premade copolymers or conventional functional groups. S3P is done at temperatures below the melt or glass transition. Polymer pellets or flakes undergo compression and high shear/extensional conditions, resulting in fragmentation/fracture into a fine powder without melting. Depending on S3P conditions, chain scission may occur, yielding highly-reactive free radicals at chain ends. Radical combination at interfaces and in highly-mixed regions may yield block copolymers like those achieved with reactive compatibilization during melt mixing of functionalized polymers.

AB - Solid-state shear pulverization (S3P) was used to compatibilize a polypropylene/polystyrene blend without adding premade copolymers or conventional functional groups. S3P is done at temperatures below the melt or glass transition. Polymer pellets or flakes undergo compression and high shear/extensional conditions, resulting in fragmentation/fracture into a fine powder without melting. Depending on S3P conditions, chain scission may occur, yielding highly-reactive free radicals at chain ends. Radical combination at interfaces and in highly-mixed regions may yield block copolymers like those achieved with reactive compatibilization during melt mixing of functionalized polymers.

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ER -

Novel strategy for polymer blend compatibilization: Solid-state shear pulverization

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ASJC Scopus subject areas

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