Influence of crosslinking conditions on the phase behavior of a polyacrylate‐based liquid‐crystalline elastomer | Zendy

Zubarev Eugene R. | Zendy; Talroze Raissa V. | Zendy; Yuranova Tatyana I. | Zendy; Vasilets Victor N. | Zendy; Platé Nicolai A. | Zendy

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Influence of crosslinking conditions on the phase behavior of a polyacrylate‐based liquid‐crystalline elastomer

Author(s) -

Zubarev Eugene R.,

Talroze Raissa V.,

Yuranova Tatyana I.,

Vasilets Victor N.,

Platé Nicolai A.

Publication year - 1996

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.1996.030170107

Subject(s) - liquid crystal , materials science , elastomer , phase (matter) , isotropy , polymer chemistry , sodium polyacrylate , chemical engineering , composite material , organic chemistry , optics , chemistry , raw material , physics , optoelectronics , engineering

The influence of crosslinking conditions (γ‐radiation‐induced and chemical crosslinking above and below the clearing point) on the phase behavior of a liquid‐crystalline polyacrylate‐based elastomer is shown and discussed. The network formation in samples γ‐irradiated in the nematic phase results in an increase of the clearing point T n‐i which does not depend on the crosslinking density expressed as the ratio of weight‐average molecular weight over number‐average molecular weight between crosslinks M w / M c within a wide M w / M c range. The distorting action of the crosslinking agent at the same temperature leads to the opposite tendency in the change of T n‐i . Crosslinking in the isotropic phase shows a strong decrease in T n‐i .

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