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Title: Twist grain boundary A phase in [R]-[-]-1-methyl-heptyl 4'-(3''-chloro-4''-n-alkoxybenzoyloxy) biphenyl-4-carboxylates
Authors: Kasthuraiah, N.
Sadashiva, B.K.
Nguyen, H.T.
Rouillon, J.C.
Isaert, N.
Issue Date: May-2000
Publisher: Taylor & Francis
Citation: Ferroelectrics, 2000, Vol.243, p37-47
Abstract: Six chiral compounds belonging to the l-methylheptyl 4'-(3''-chloro-4''-n- alkoxybenzoyloxy) biphenyl-4-carboxylates have been synthesized. Twist grain boundary A phase was observed in five of the compounds including [R]-[-] and [S]-[+] enantiomers of the n-tetradecyloxy derivatives. All these five compounds also show smectic A and chiral smectic C phases. The nature of the helical smectic phases has been characterized by using different techniques viz. optical polarized light microscopy, differential scanning calorimetry, binary mixture studies and helical pitch measurements.
Description: Restricted Access.
ISSN: 0015-0193
1521-0464 (electronic)
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Copyright: 2000 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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