@article{oai:kanazawa-u.repo.nii.ac.jp:00010671,
 author = {Ogawa, Hiroshi and Hosomi, Tetsuya and Kosaka, Toshiaki and Kanoh, Shigeyoshi and Ueyama, Akihiko and Motoi, Masatoshi},
 issue = {1},
 journal = {Bulletin of the Chemical Society of Japan},
 month = {Jan},
 note = {A series of polyoxetanes were prepared by the cationic ring-opening polymerization of 4-(4-alkoxyphenylazo)phenyl 4-[7-(3-methyl-3-oxetanyl)-1,6-dioxaheptyl]benzoates using 0.08 molar amount of THF·BF3 in dichloromethane at 20 to 30 °C. Although the product polymers indicated GPC-average molecular weights of around 9000 to 23000, in most cases, they did not have an unimodal molecular weight dispersity. The liquid-crystalline mesophases of the polymers were examined by differential scanning calorimetry and polarized optical microscopy; these textures were observed due to nematic and/or smectic mesophases over a wide temperature range from about 250 °C to room temperature. The benzoate moiety, the longer p-substituted alkoxy tails, and the oxetane main chain play important roles in maintaining highly ordered, stable mesophases.},
 pages = {175--187},
 title = {Side-Chain Liquid-Crystalline Polyoxetanes with a Spacer-Separated Azobenzene Moiety. II. Preparation and Characterization of Polyoxetanes Derived from 4-(4-Alkoxyphenylazo)phenyl 4-[7-(3-Methyl-3-oxetanyl)-1,6-dioxaheptyl]benzoates},
 volume = {70},
 year = {1997}
}