Polyimidothioethers-inorganic nanoparticle hybrid material, intermediate thereof and their preparation
AssigneeNational Taiwan University
InventorsGuey-Sheng LIOU, Chia-Liang Tsai, Hung-Ju Yen, Wen-Chang Chen, Wen-Yen Chu, Yang-Yen Yu
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Abstract
The present invention relates to novel polyimidothioethers-inorganic nanoparticle hybrid material, which exhibit good surface planarity, thermal dimensional stability, tunable refractive index, and high optical transparency upon forming into films. The present invention also relates to polyimidothioethers which is an intermediate for preparing the present hybrid material, and their preparation.
Claims12
A polyimidothioethers-inorganic nanoparticle hybrid material, which comprises a polymer having repeat units represented by the following formula (I) and inorganic nanoparticles:
- wherein, in the plurality of the repeat units, each X is the same or different and is at least one moiety selected from the group consisting of C1-4 alkylene, —S— and —SO2—;
- and
- in the plurality of the repeat units, in each repeat units is the same or different and is at least one moiety selected from the group consisting of C1-4 alkylene, C2-4 alkylene having at least one hydroxyl substituent, and a moiety of formula:
- -Ph-S-Ph- (wherein Ph represents phenylene), provided that in at least one repeat unit represents C2-4 alkylene having at least one hydroxyl substituent;
- and
- n is a number of from 30 to 250;
- wherein the inorganic nanoparticle is bonded to the polymer through the hydroxyl on , and the weight ratio of the polymer to the inorganic nanoparticle is from 95:5 to 40:60.
A polyimidothioether intermediate, which has repeat units represented by the following formula (I):
- wherein, in the plurality of the repeat units, each X is the same or different and is at least one moiety selected from the group consisting of C1-4 alkylene, —S— and —SO2—;
- and
- in each repeat units is the same or different and is at least one moiety selected from the group consisting of C1-4 alkylene, C2-4 alkylene having at least one hydroxyl substituent, and a moiety of formula:
- -Ph-S-Ph- (wherein Ph represents phenylene), provided that in at least one repeat unit represents C2-4 alkylene having at least one hydroxyl substituent;
- and
- n is a number of from 30 to 250.
Dependencies are inferred from the claim text.