公开(公告)号：US09908844B2

公开(公告)日：2018-03-06

申请号：US15205083

申请日：2016-07-08

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Wen-Chiung Su ,  Ru-Jong Jeng ,  Chien-Hsin Wu ,  Yu-Wen Lai ,  Shih-Chieh Yeh

IPC: C07C245/08

CPC classification number: C07C245/08 ,  C08G69/00

Abstract: Epoxy/MMT composite material and a crosslinking method for epoxy/MMT composite material with second order nonlinear optical properties are introduced. Chromophore-containing intercalating agents are applied to modify montmorillonites (MMTs) to form organoclays by an ion-exchange process, wherein the chrmophores are neatly packed on exfoliated epoxy/organoclay nanocomposites. As a result, optical nonlinearity, i.e. the Pockels effect is observed for the nanocomposites without resorting to the poling process due to self-assembly process. Furthermore, a series of epoxy/MMT nanocomposites comprising thermally reversible furan-norbornene Diels-Alder adducts are prepared to establish a crosslinking feature. Self-alignment behavior, electro-optical (EO) coefficient and temporal stability of the epoxy/MMT nanocomposites are improved by the Diels-Alders crosslinking.

公开(公告)号：US10654965B2

公开(公告)日：2020-05-19

申请号：US15828457

申请日：2017-12-01

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Wen-Chiung Su ,  Chien-Hsin Wu ,  Yu-Ru Lin ,  Sheng-Hong Dai ,  Ru-Jong Jeng

IPC: C08G18/32 ,  C07C39/17 ,  C07C13/61 ,  C08G18/42 ,  C07C41/16 ,  C08G18/75 ,  C08G18/73 ,  C08G18/76 ,  C07C37/14 ,  C07C4/22

Abstract: A method of producing a five-carbon ring derivative-containing polyurethane involves introducing a DCPD-derived 5-carbon cyclic compound into a polyurethane material and effectuating polymerization in the presence of a solvent of a low boiling point and low toxicity to produce a five-carbon ring derivative-containing polyurethane of a high molecular weight.