DSC characterisation of various phase transitions in mesomorphic benzylidene anilines | Zendy

Pisipati V. G. K. M. | Zendy; Rao N. V. S. | Zendy; Alapati P. R. | Zendy

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DSC characterisation of various phase transitions in mesomorphic benzylidene anilines

Author(s) -

Pisipati V. G. K. M.,

Rao N. V. S.,

Alapati P. R.

Publication year - 1989

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170241221

Subject(s) - differential scanning calorimetry , phase transition , phase (matter) , calorimetry , crystallography , order (exchange) , chemistry , materials science , analytical chemistry (journal) , thermodynamics , organic chemistry , physics , finance , economics

To analyse the order of the phase transitions in a number of mesomorphic benzylidene anilines, the DSC (Differential Scanning Calorimetry) method proposed by N AVARD and H AUDIN is used. This method involves the measurement of the ratio ( N ) of the DSC peak heights H 2 / H 1 for a given transition, performed with two different heating rates ( T 2 / T 1 ). N is a function of the ratio r 2 / r 1 (= R ) and the magnitude of N provides a simple way to characterize the order of a phase transition.

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