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Physical and Optical Properties of PMMA/PVDF Blends  

김병철 (한국전자통신연구원 광통신소자연구부)
최춘기 (한국전자통신연구원 광통신소자연구부)
한상필 (한국전자통신연구원 광통신소자연구부)
윤근병 (한국전자통신연구원 광통신소자연구부)
정명영 (한국전자통신연구원 광통신소자연구부)
Publication Information
Polymer(Korea) / v.26, no.4, 2002 , pp. 462-467 More about this Journal
Abstract
Blends of polymethylmethacrylate (PMMA) with polyvinylidenefluoride (PVDF) were prepared by melt mixing and investigated for optical waveguide devices by using hot embossing process. The glass transition temperatures ($T_g$) of the blends were decreased with increasing PVDF contents. However, the crystalline of PMMA/PVDF blends was not appeared by DSC and XRD due to miscibility between PMMA and PVDF. Shear viscosities and refractive indices of the blends were decreased with increasing PVDF contents. Optical transmittances and absorption losses of the blends were improved with increasing PVDF contents. This is due to a decreasing of polarizability of molecules by fluorine molecule in the PVDF.
Keywords
polymethylmethacrylate (PMMA); polyvinylidenefluoride (PVDF); blends; optical waveguide; hot embossing;
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