Induced Smectic E Phase in a Binary Blend of Side-Chain Liquid Crystalline Polymers.
induced smectic E phase
polymer blends
side chain liquid crystalline polymers
Journal
Macromolecular rapid communications
ISSN: 1521-3927
Titre abrégé: Macromol Rapid Commun
Pays: Germany
ID NLM: 9888239
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
revised:
02
11
2022
received:
22
09
2022
pubmed:
12
11
2022
medline:
15
3
2023
entrez:
11
11
2022
Statut:
ppublish
Résumé
Two liquid crystalline polymers containing an azobenzene or cyanobiphenyl mesogenic side chain that adopt smectic A phases are mechanically mixed at 1:1 mesogen molar ratio at an isotropic phase temperature and then cooled. The resultant binary polymer mixture behaves like a single component as revealed by polarized microscopy observation and differential scanning calorimetry, indicating that the binary mixture forms a fully compatible polymer blend. Moreover, the simple polymer blend unexpectedly leads to a higher-ordered smectic E phase where a herringbone structure is formed with restricted mesogen axis rotation. These results suggest a specific intermolecular interaction between the two mesogens, thereby inducing unusual compatibilized polymer blends and the most ordered liquid crystal (LC) phase.
Identifiants
pubmed: 36367366
doi: 10.1002/marc.202200761
doi:
Substances chimiques
Polymers
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2200761Subventions
Organisme : Core Research for Evolutional Science and Technology
ID : JPMJCR21B5
Organisme : Japan Society for the Promotion of Science
ID : 19H02774
Organisme : Japan Society for the Promotion of Science
ID : 21H01983
Organisme : Japan Society for the Promotion of Science
ID : 21K19000
Informations de copyright
© 2022 Wiley-VCH GmbH.
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