Preliminary communication Bi-mesogenic organosiloxane liquid crystal materials exhibiting antiferroelectric phases

W. K. Robinson, P. S. Kloess, C. Carboni, H. J. Coles*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

42 اقتباسات (Scopus)

ملخص

The first antiferroelectric low molar mass organosiloxane liquid crystal materials are presented. The molecules are bi-mesogens consisting of two chiral mesogenic units attached, via methylene spacers, symmetrically to a siloxane group. Three series of compounds with different laterally substituted halogens on the phenyl ring nearest to the chiral centre have been studied. For siloxane groups containing three silicon atoms all of the materials exhibit antiferroelectric phases over a 60 C temperature range. The tilt angle in the SmC* A is, within experimental uncertainties, independent of temperature and close to 45 degrees for the three series with a spontaneous polarization greater than 110nC cm -2.

اللغة الأصليةEnglish
الصفحات (من إلى)309-312
عدد الصفحات4
دوريةLiquid Crystals
مستوى الصوت23
رقم الإصدار2
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 1997

ASJC Scopus subject areas

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