Preparation of poly(methyl methacrylate)/clay nanocomposites by microwaveassisted in-situ radical polymerization

정지원; 김동현; 장재호; 이정택; 유경현; 윤석영

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자료유형: 학술저널

저자정보: 정지원 김동현 장재호 이정택 유경현 윤석영

저널정보: 한국결정성장학회 한국결정성장학회지 한국결정성장학회지 제29권 제1호

발행연도: 2019.1

수록면: 19 - 23 (5page)

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연구배경

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연구방법

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The PMMA (polymethyl methacrylate)/clay nanocomposites were synthesized by in situ radical polymerizations with different clay contents (3 and 7 wt%) using microwave heating. The nanostructure, optical, and thermal properties of the synthesized PMMA/clay nanocomposites were measured by XRD, TEM, AFM, UV-vis, and TGA. It was found that the intercalated- or exfoliated structure of PMMA/clay nanocomposites was strongly dependent on the content of clay. Thus, the imposition of microwave-assisted polymerization facilitated a delamination process of layered silicates to achieve exfoliation state of interlayer distance. The PMMA/3 wt% C10A nanocomposite with well-dispersed and exfoliated clay nano-layers showed the good optical transparency similar to pure PMMA in this study. The thermal decomposition rates of the PMMA/clay nanocomposites become to be lower compared to that of the pure PMMA, indicating the intercalated- or exfoliated inorganic silicate has high thermal stability. A possible reason is that the thermally segmental motion of PMMA polymer into inorganic silicate interlayer spacing has increased the thermal stability of the PMMA/clay nanocomposites.

참고문헌 (21)

참고문헌 신청

E.P. Giannelis / 1996 / Polymer layered silicate nanocomposites / Adv. Mater 8:29

M. Alexandre / 2000 / Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials / R : Reports 28:1

M. Biswas / 2001 / Recent progress in synthesis and evaluation of polymer-montmorillonite nanocomposites / Adv. Polym. Sci 155:167

J.J. Luo / 2003 / Characterization and modeling of mechanical behavior of polymer/clay nanocomposites / Compos. Sci. Technol 63:1607

D.R. Paul / 2008 / Polymer nanotechnology:nanocomposites / Polymer 49:3187

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