Preparation of clay-dispersed poly(styrene- co-acrylonitrile) nanocomposites using poly(ϵ-caprolactone) as a compatibilizer

Poly(styrene- co-acrylonitrile) (SAN)/organoclay nanocomposites were prepared using poly(ϵ-caprolactone) (PCL) as a compatibilizer. Two-step mixing sequence was used to prepare the SAN nanocomposites: PCL/organoclay master batches with different degree of intercalation were prepared by melt mixing f...

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Bibliographic Details
Published in:Polymer (Guilford) 2001-11, Vol.42 (24), p.9837-9842
Main Authors: Kim, Seong Woo, Jo, Won Ho, Lee, Moo Sung, Ko, Moon Bae, Jho, Jae Young
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Nanocomposites
Organoclay
Poly(styrene- co-acrylonitrile)
Polymer industry, paints, wood
Technology of polymers
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Summary:Poly(styrene- co-acrylonitrile) (SAN)/organoclay nanocomposites were prepared using poly(ϵ-caprolactone) (PCL) as a compatibilizer. Two-step mixing sequence was used to prepare the SAN nanocomposites: PCL/organoclay master batches with different degree of intercalation were prepared by melt mixing first, and then they were melt-mixed with SAN, where PCL is miscible with SAN. The intercalation behavior of PCL in the master batches was investigated in terms of the type of organic modifier and mixing conditions such as shear rate, mixing temperature and mixing time. Longer mixing time and lower mixing temperature were required to prepare exfoliated PCL master batches. As the degree of exfoliation of clays becomes better, the stiffness reinforcement effect of the organoclays increases in both PCL/organoclay master batches and their blends with SAN.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(01)00506-7