POLYMER MATERIAL AND METHOD FOR MANUFACTURING SAME
申请人:Osaka University
公开号:EP3760646A1
公开(公告)日:2021-01-06
Provided are a macromolecular material that can form various structures, and that exhibits excellent toughness and strength; and a method for producing the macromolecular material. The macromolecular material includes in a polymer chain thereof a structural unit represented by the following formula (1):
-R1-RH (1)
(R1 represents NH or O, and RH represents a host group), wherein the host group is a monovalent group formed by removing one hydrogen atom or hydroxy group from a cyclodextrin derivative, and the cyclodextrin derivative has a structure formed such that a hydrogen atom of at least one hydroxy group contained in a cyclodextrin is replaced with at least one group selected from the group consisting of a hydrocarbon group, an acyl group, and -CONHR (R represents a methyl group or an ethyl group).
Liquid crystalline network compositions comprising azo-containing aromatic epoxy units cross-linked with alkylene diacid units having alkylene segments containing at least one methylene unit, wherein the azo-containing aromatic epoxy units and alkylene diacid units are connected by ester linkages resulting from ring-opening esterification between the epoxy units and alkylene diacids, and wherein the azo-containing aromatic epoxy units and alkylene diacid units are in a molar ratio that results in the liquid crystalline network composition exhibiting a glass transition temperature (Tg) of at least 25° C. Methods for producing these compositions and their use in light- or thermal-activated physical deformation, shape memory applications, and self-healing, as well as their ability to be recycled and used in additive manufacturing processes are also described.
Rusu, Elena; Bǎrboiu, Virgil; Airinei, Anton, Revue Roumaine de Chimie, 2000, vol. 45, # 5, p. 451 - 456
作者:Rusu, Elena、Bǎrboiu, Virgil、Airinei, Anton、Comǎniţǎ, Eugenia、Rusu, Gheorghe
DOI:——
日期:——
STIMULI-RESPONSIVE LIQUID CRYSTALLINE NETWORKS
申请人:UT-Battelle, LLC
公开号:US20170240811A1
公开(公告)日:2017-08-24
Liquid crystalline network compositions comprising azo-containing aromatic epoxy units cross-linked with alkylene diacid units having alkylene segments containing at least one methylene unit, wherein the azo-containing aromatic epoxy units and alkylene diacid units are connected by ester linkages resulting from ring-opening esterification between the epoxy units and alkylene diacids, and wherein the azo-containing aromatic epoxy units and alkylene diacid units are in a molar ratio that results in the liquid crystalline network composition exhibiting a glass transition temperature (T
g
) of at least 25° C. Methods for producing these compositions and their use in light- or thermal-activated physical deformation, shape memory applications, and self-healing, as well as their ability to be recycled and used in additive manufacturing processes are also described.