Influence of morphology on the transport properties of polystyrene/polybutadiene blends. 1. Experimental studies

J. E. Sax; J. M. Ottino

doi:10.1016/0032-3861(85)90231-9

Influence of morphology on the transport properties of polystyrene/polybutadiene blends. 1. Experimental studies

J. E. Sax^*, J. M. Ottino

^*Corresponding author for this work

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Abstract

Experimental and quantitative image analysis studies are presented to investigate the influence of morphology on the transport of small gaseous penetrants (CO₂, O₂, N₂) in randomly interspersed blends of polystyrene (A) and polybutadiene (B) ranging in volume fractions, f{cyrillic}_B, from 0.08 to 0.90. The overall transport process, for the blends, appears non-Fickian even though both pure phases A and B exhibit Fickian behaviour. An explanation of this phenomenon, based solely on morphological effects, is presented. A conclusion of the study is that the different methods usually taken as equivalent, to compute the effective diffusion coefficient from sorption data, can give significantly different results. An examination of the morphology is performed by means of digital image analysis on transmission electron microscopy, TEM, micrographs. A significant finding is that, for this system, the maximum intermaterial area density occurs for f{cyrillic}_B around 0.15.

Original language	English (US)
Pages (from-to)	1073-1080
Number of pages	8
Journal	Polymer
Volume	26
Issue number	7
DOIs	https://doi.org/10.1016/0032-3861(85)90231-9
State	Published - Jul 1985

Keywords

image analysis
morphology
polymer blend
sorption
transport

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(85)90231-9

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title = "Influence of morphology on the transport properties of polystyrene/polybutadiene blends. 1. Experimental studies",

abstract = "Experimental and quantitative image analysis studies are presented to investigate the influence of morphology on the transport of small gaseous penetrants (CO2, O2, N2) in randomly interspersed blends of polystyrene (A) and polybutadiene (B) ranging in volume fractions, f{cyrillic}B, from 0.08 to 0.90. The overall transport process, for the blends, appears non-Fickian even though both pure phases A and B exhibit Fickian behaviour. An explanation of this phenomenon, based solely on morphological effects, is presented. A conclusion of the study is that the different methods usually taken as equivalent, to compute the effective diffusion coefficient from sorption data, can give significantly different results. An examination of the morphology is performed by means of digital image analysis on transmission electron microscopy, TEM, micrographs. A significant finding is that, for this system, the maximum intermaterial area density occurs for f{cyrillic}B around 0.15.",

keywords = "image analysis, morphology, polymer blend, sorption, transport",

author = "Sax, {J. E.} and Ottino, {J. M.}",

note = "Funding Information: This research was supported by the National Science Foundation grant DMR-8020244 and the Center for University of Massachusetts Industry Research in Polymers. We would like to acknowledge the assistance of D. Chesley and D. Oliver (University of Massachusetts Remote Sensing Center, Digital Image Analysis Laboratory), in the development and implementation of the digital image analysis software.",

year = "1985",

month = jul,

doi = "10.1016/0032-3861(85)90231-9",

language = "English (US)",

volume = "26",

pages = "1073--1080",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "7",

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T1 - Influence of morphology on the transport properties of polystyrene/polybutadiene blends. 1. Experimental studies

AU - Sax, J. E.

AU - Ottino, J. M.

N1 - Funding Information: This research was supported by the National Science Foundation grant DMR-8020244 and the Center for University of Massachusetts Industry Research in Polymers. We would like to acknowledge the assistance of D. Chesley and D. Oliver (University of Massachusetts Remote Sensing Center, Digital Image Analysis Laboratory), in the development and implementation of the digital image analysis software.

PY - 1985/7

Y1 - 1985/7

N2 - Experimental and quantitative image analysis studies are presented to investigate the influence of morphology on the transport of small gaseous penetrants (CO2, O2, N2) in randomly interspersed blends of polystyrene (A) and polybutadiene (B) ranging in volume fractions, f{cyrillic}B, from 0.08 to 0.90. The overall transport process, for the blends, appears non-Fickian even though both pure phases A and B exhibit Fickian behaviour. An explanation of this phenomenon, based solely on morphological effects, is presented. A conclusion of the study is that the different methods usually taken as equivalent, to compute the effective diffusion coefficient from sorption data, can give significantly different results. An examination of the morphology is performed by means of digital image analysis on transmission electron microscopy, TEM, micrographs. A significant finding is that, for this system, the maximum intermaterial area density occurs for f{cyrillic}B around 0.15.

AB - Experimental and quantitative image analysis studies are presented to investigate the influence of morphology on the transport of small gaseous penetrants (CO2, O2, N2) in randomly interspersed blends of polystyrene (A) and polybutadiene (B) ranging in volume fractions, f{cyrillic}B, from 0.08 to 0.90. The overall transport process, for the blends, appears non-Fickian even though both pure phases A and B exhibit Fickian behaviour. An explanation of this phenomenon, based solely on morphological effects, is presented. A conclusion of the study is that the different methods usually taken as equivalent, to compute the effective diffusion coefficient from sorption data, can give significantly different results. An examination of the morphology is performed by means of digital image analysis on transmission electron microscopy, TEM, micrographs. A significant finding is that, for this system, the maximum intermaterial area density occurs for f{cyrillic}B around 0.15.

KW - image analysis

KW - morphology

KW - polymer blend

KW - sorption

KW - transport

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VL - 26

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JO - Polymer

JF - Polymer

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ER -

Influence of morphology on the transport properties of polystyrene/polybutadiene blends. 1. Experimental studies

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Keywords

ASJC Scopus subject areas

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