Title of article :
Flexible self-supporting supramolecular polymeric membranes consisting of 1,3,5-trisubstituted benzene derivatives synthesized by highly selective photocyclic aromatization of helical poly(phenylacetylene)s in the membrane state
Author/Authors :
Miyata، نويسنده , , Mari and Namikoshi، نويسنده , , Takeshi and Liu، نويسنده , , Lijia and Zang، نويسنده , , Yu and Aoki، نويسنده , , Toshiki and Abe، نويسنده , , Yunosuke and Oniyama، نويسنده , , Yoshiyuki and Tsutsuba، نويسنده , , Toyokazu and Teraguchi، نويسنده , , Masahiro and Kaneko، نويسنده , , Takashi، نويسنده ,
Abstract :
It has been achieved to obtain flexible self-supporting supramolecular polymeric membranes consisting of only 1,3,5-trisubstituted benzene derivatives prepared by highly selective photocyclic aromatization of the corresponding poly (substituted phenylacetylene)s having a columnar structure. The flexibilities of the self-supporting supramolecular polymeric membranes were enhanced by introducing hydroxyl groups or phenylene groups to the starting polymers (monomers). There were two reasons for the enhanced strength: 1) introduction of intercolumnar hydrogen bonds and 2) enhancement of the degree of intracolumnar stackings. This strength depended on the structure of the starting polymers which functioned as a template.
