Nanostructures and thermomechanical properties of epoxy thermosets containing reactive diblock copolymer

Zhiguang Xu; Nishar Hameed; Qipeng Guo; Yiu Wing Mai

doi:10.1002/app.31284

Nanostructures and thermomechanical properties of epoxy thermosets containing reactive diblock copolymer

Zhiguang Xu, Nishar Hameed, Qipeng Guo, Yiu Wing Mai

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

Polystyrene-block-poly(glycidyl methacrylate) reactive diblock copolymer (PS-b-PGMA) was synthesized via atom transfer radical polymerization (ATRP). The diblock copolymer was characterized using nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The cured epoxy thermosets with 10-20 nm PS particles were prepared by blending the diblock copolymer with epoxy resin. The nanostructures were examined by means of transmission electronic microscopy (TEM) and small angle X-ray scattering (SAXS). The formation of the nanostructures was caused by the reaction-induced microphase separation mechanism. It is significant that the glass transition temperatures (T_gs) of these epoxy thermosets were increased by the addition of PS-b-PGMA reactive block copolymer as revealed by both differential scanning calorim- etry (DSC) and dynamic mechanical analysis (DMA).

Original language	English
Pages (from-to)	2110-2118
Number of pages	9
Journal	Journal of Applied Polymer Science
Volume	115
Issue number	4
DOIs	https://doi.org/10.1002/app.31284
Publication status	Published - 15 Feb 2010
Externally published	Yes

Keywords

Blends
Epoxy resin
Reactive block copolymer
Thermomechanical properties

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

More information

10.1002/app.31284

Cite this

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abstract = "Polystyrene-block-poly(glycidyl methacrylate) reactive diblock copolymer (PS-b-PGMA) was synthesized via atom transfer radical polymerization (ATRP). The diblock copolymer was characterized using nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The cured epoxy thermosets with 10-20 nm PS particles were prepared by blending the diblock copolymer with epoxy resin. The nanostructures were examined by means of transmission electronic microscopy (TEM) and small angle X-ray scattering (SAXS). The formation of the nanostructures was caused by the reaction-induced microphase separation mechanism. It is significant that the glass transition temperatures (Tgs) of these epoxy thermosets were increased by the addition of PS-b-PGMA reactive block copolymer as revealed by both differential scanning calorim- etry (DSC) and dynamic mechanical analysis (DMA).",

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AU - Xu, Zhiguang

AU - Hameed, Nishar

AU - Guo, Qipeng

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AB - Polystyrene-block-poly(glycidyl methacrylate) reactive diblock copolymer (PS-b-PGMA) was synthesized via atom transfer radical polymerization (ATRP). The diblock copolymer was characterized using nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The cured epoxy thermosets with 10-20 nm PS particles were prepared by blending the diblock copolymer with epoxy resin. The nanostructures were examined by means of transmission electronic microscopy (TEM) and small angle X-ray scattering (SAXS). The formation of the nanostructures was caused by the reaction-induced microphase separation mechanism. It is significant that the glass transition temperatures (Tgs) of these epoxy thermosets were increased by the addition of PS-b-PGMA reactive block copolymer as revealed by both differential scanning calorim- etry (DSC) and dynamic mechanical analysis (DMA).

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KW - Thermomechanical properties

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Nanostructures and thermomechanical properties of epoxy thermosets containing reactive diblock copolymer

Abstract

Keywords

ASJC Scopus subject areas

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