Issue 29, 2023

Room-temperature Ia[3 with combining macron]d phase obtained for the binary mixture containing different sizes of siloxanyl terminals

Abstract

Two types of binary mixtures were examined to optimize the siloxanyl fraction by filling the gap between the two Cub-phase-forming molecules with di- and tri-siloxanyl terminals. Adding siloxanyl to the disiloxanyl system largely inhibited crystallization, increasing the stability at room temperature of the meta-stable Ia[3 with combining macron]d phase obtained by cooling from the high-temperature phase. The effect was prominent for the mixtures containing both di- and tri-siloxanyl compounds. The most prominent result was obtained for the 50 : 50 mixture; the Ia[3 with combining macron]d phase was quite stable and survived at room temperature after more than 1 year, as if it were like a thermodynamically stable phase.

Graphical abstract: Room-temperature Ia [[3 with combining macron]] d phase obtained for the binary mixture containing different sizes of siloxanyl terminals

Supplementary files

Article information

Article type
Paper
Submitted
14 May 2023
Accepted
27 Jun 2023
First published
28 Jun 2023

Phys. Chem. Chem. Phys., 2023,25, 19891-19898

Room-temperature Ia[3 with combining macron]d phase obtained for the binary mixture containing different sizes of siloxanyl terminals

Y. Kawase, S. Kutsumzu, T. Udagawa, Y. Miwa, Y. Yamamura and K. Saito, Phys. Chem. Chem. Phys., 2023, 25, 19891 DOI: 10.1039/D3CP02200E

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