Properties of poly(ethylene terephthalate) containing epoxy‐functionalized polyhedral oligomeric silsesquioxane

Polymer International - Tập 54 Số 1 - Trang 47-53 - 2005
Kwan Han Yoon1, Malcolm B. Polk2, Jae Hong Park1, Byung Gil Min1, David A. Schiraldi3
1School of Advanced Material & System Engineering, Kumoh National Institute of Technology, 188 Shinpyung-dong, Kumi, Kyungbuk, 730-701, Korea
2School of Polymer, Textile & Fiber Engineering, Georgia Institute of Technology, 801 Ferst Dr, Atlanta GA 30332, USA
3Department of Macromolecular Science & Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland OH 44106, USA

Tóm tắt

AbstractPoly(ethylene terephthalate) (PET) containing epoxy‐functionalized polyhedral oligomeric silsesquioxane (POSS) was prepared by melt‐mixing and in situ polymerization methods. The melt‐mixed composite showed phase separation while the in situ polymerized composite did not, based on SEM characterization. During melt mixing, the reaction between the epoxy groups of POSS and hydroxyl groups of PET occurred, based on DSC results. DSC results on the in situ polymerization product showed formation of a lower‐melting component compared with PET. The tensile strength and modulus of the melt‐mixed composite fiber decreased compared with those properties of PET, whereas those of the in situ polymerized composite showed slightly higher values than PET despite the relatively small amounts (1 wt%) of POSS used. Dynamic mechanical analysis results showed an increase in storage modulus for the in situ polymerized composite of POSS and PET compared with PET over the temperature range of 40 °C to 140 °C. Copyright © 2004 Society of Chemical Industry

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Polymer International

Tập 54 Số 1

47-53

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