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US 2020/0369801 A1Published application
Photocrosslinkable neutral electrochromic polymers and method for preparing same
AssigneeAmbilight Inc.
InventorsLiyan YOU, Jiazhi HE, Jianguo MEI
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Abstract
Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.
Claims21
A polymer comprising a formula of:
- wherein n is an integer greater than 0;
- x is an integer greater than 0;
- y is an integer greater than 0;
- z is an integer greater than 0;
- M is a monomer unit;
- and each of R1, R2, R3 and R4 is independently selected from one of hydrogen, C1-C30 alkyl, C2-C30 alkenyl, C2-C30 alkynyl, C2-C30 alkylcarbonyl, C1-C30 alkoxy, C1-C30 alkoxyalkyl, or C2-C30 alkoxycarbonyl.
3 more elements
A polymer comprising a formula of:
- wherein n is an integer greater than 0;
- x is an integer greater than 0;
- y is an integer greater than 0;
- z is an integer greater than 0;
- and each of R1, R2, R3 and R4 is independently selected from one of hydrogen, C1-C30 alkyl, C2-C30 alkenyl, C2-C30 alkynyl, C2-C30 alkylcarbonyl, C1-C30 alkoxy, C1-C30 alkoxyalkyl, or C2-C30 alkoxycarbonyl.
2 more elements
A method for forming a polymer, the method comprising:
- forming a polymer precursor with one or more chromophore blocks;
- and
- mixing the polymer precursor with photocrosslinkable monomer units under conditions sufficient to form the polymer.
Dependencies are inferred from the claim text.