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Miscibility, UV resistance, thermal degradation, and mechanical properties of PMMA/SAN blends and their composites with MWCNTs

Parameswaranpillai, Jyotishkumar, Joseph, George, Sidhardhan, Sisanth Krishnan, Jose, Seno and Hameed, Nishar 2016, Miscibility, UV resistance, thermal degradation, and mechanical properties of PMMA/SAN blends and their composites with MWCNTs, Journal of applied polymer science, vol. 133, no. 30, pp. 1-11, doi: 10.1002/app.43628.

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Title Miscibility, UV resistance, thermal degradation, and mechanical properties of PMMA/SAN blends and their composites with MWCNTs
Author(s) Parameswaranpillai, Jyotishkumar
Joseph, George
Sidhardhan, Sisanth Krishnan
Jose, Seno
Hameed, Nishar
Journal name Journal of applied polymer science
Volume number 133
Issue number 30
Start page 1
End page 11
Total pages 11
Publisher Wiley
Place of publication London, Eng.
Publication date 2016-08-10
ISSN 0021-8995
1097-4628
Keyword(s) Science & Technology
Physical Sciences
Polymer Science
composites
polystyrene
properties and characterization
thermal properties
thermoplastics
POLY(METHYL METHACRYLATE)/POLY(STYRENE-CO-ACRYLONITRILE) BLENDS
RANDOM COPOLYMER BLENDS
POLYMER BLENDS
PHASE-SEPARATION
POLY(STYRENE-CO-ACRYLONITRILE) BLENDS
NEUTRON-SCATTERING
HYBRID COMPOSITES
METHACRYLATE)
BEHAVIOR
MORPHOLOGY
Summary Poly(methyl methacrylate)/poly(styrene-co-acrylonitrile) (PMMA/SAN) blends, with varying concentrations, were prepared by melt-mixing technique. The miscibility is ensured by fixing the acrylonitrile (AN) content of styrene acrylonitrile (SAN) as 25% by weight. The blends were transparent as well. The Fourier transform infrared spectroscopic (FTIR) studies did not reveal any specific interactions, supporting the well accepted 'copolymer repulsion effect' as the driving mechanism for miscibility. Addition of SAN increased the stability of PMMA towards ultraviolet (UV) radiations and thermal degradation. Incorporation of even 0.05% by weight of multi-walled carbon nanotubes (MWCNTs) significantly improved the UV absorbance and thermal stability. Moreover, the composites exhibited good strength and modulus. However, at higher concentrations of MWCNTs (0.5 and 1% by weight) the thermo-mechanical properties experienced deterioration, mainly due to the agglomeration of MWCNTs. It was observed that composites with 0.05% by weight of finely dispersed and well distributed MWCNTs provided excellent protection in most extreme climatic conditions. Thus, PMMA/SAN/MWCNTs composites can act as excellent light screens and may be useful, as cost-effective UV absorbers, in the outdoor applications.
Language eng
DOI 10.1002/app.43628
Field of Research 091209 Polymers and Plastics
03 Chemical Sciences
09 Engineering
Socio Economic Objective 870303 Polymeric Materials (e.g. Paints)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084833

Document type: Journal Article
Collection: Institute for Frontier Materials
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