Study of Thermotropic Transformation of Tris-cis-tris-trans-dodeca-phenylcyclododecasiloxanedodecaol – Precursor for the Preparation of Phenylsilsesquioxane Polymers of Unusual Architecture

O. I. Shchegolikhina,^a@ E. V. Matukhina,^b A. A. Anisimov,^a Yu. A. Molodtsova,^a M. I. Buzin,^a K. A. Lyssenko,^a and A. M. Muzafarov^a,c

^aA.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation

^bMoscow State Pedagogical University, 119882 Moscow, Russian Federation

^cN.S. Enikolopov Institute of Synthetic Polymeric Materials, 117393 Moscow, Russian Federation

^@Corresponding author E-mail: olga@ineos.ac.ru

DOI: 10.6060/mhc151207s
Macroheterocycles 2016 9(1) 11-16

The samples of tris-cis-tris-trans-dodecaphenylcyclododecasiloxanedodecaol (dodecaol) with different crystalline structure have been investigated by means of TGA and X-ray methods. The samples obtained have exhibited mesomorphic properties, the thermal behavior and the type of mesomorphic ordering being directly associated with the type of the main H-bonded unit forming the initial crystalline structure. In turn, the type of an ordering in the mesophase has determined the structure of the final products of polycondensation. It was shown that the multifunctional tris-cis-tris-trans-dodecaphenylcyclododecasiloxanedodecaol can be used as possible monomer precursor for the covalent-bonded “double-chain sheet polymer”.

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Study of Thermotropic Transformation of Tris-cis-tris-trans-dodeca-phenylcyclododecasiloxanedodecaol – Precursor for the Preparation of Phenylsilsesquioxane Polymers of Unusual Architecture

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