کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1669776 1008889 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrooptical properties and microstructure of polymer-dispersed liquid crystal doped with various reinforcing materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Electrooptical properties and microstructure of polymer-dispersed liquid crystal doped with various reinforcing materials
چکیده انگلیسی

Different types of reinforcing material, such as hydrophilic silica (Aerosil 200), (1-propylmethacrylate)-heptaisobutyl-substituted PSS (POSS-1), octavinyl-substituted PSS (POSS-8), octamethyl-substituted PSS (POSS-octa), and poly(dimethylsiloxane) (PDMS) were incorporated into a conventional polymer-dispersed liquid crystal (PDLC) system to enhance electrooptical properties by increasing phase separation, resulting from increasing the gel content and decreasing the viscosity of the mixture. The mixtures with POSS-1, POSS-octa, and Aerosil 200 show lower viscosity than the neat mixture, caused by the weak interaction of monomer molecules because of inserting these particles into the monomer chains, whereas the mixtures with POSS-8 and PDMS show an increase in viscosity. The PDLC film with POSS-1 represents the lowest off-transmittance value because the gel content is above 94% and the droplet size of the LC is optimal. However, when the gel content is decreased, the droplet size of the LC in the film becomes large because of unreactive monomer flowing into the LC, giving rise to the increase in off-transmittance value.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 519, Issue 5, 30 December 2010, Pages 1558–1562
نویسندگان
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