US 11,876,176 B2
Copolymer having functional group as substituent at chain-end, method for preparing electrolyte membrane for secondary battery including the same, and electrolyte membrane for secondary battery including the same
Duk Joon Kim, Seoul (KR); Zhenchuan Tian, Suwon-si (KR); Le Mong Anh, Suwon-si (KR); Su Gyeong Kim, Suwon-si (KR); and Hae Ryung Park, Suwon-si (KR)
Assigned to Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed by Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed on Sep. 8, 2021, as Appl. No. 17/469,073.
Claims priority of application No. 10-2020-0121967 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0093971 A1, Mar. 24, 2022
Int. Cl. H01M 10/0565 (2010.01); H01M 10/0525 (2010.01); C08G 75/23 (2006.01)
CPC H01M 10/0565 (2013.01) [C08G 75/23 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0085 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A copolymer comprising:
a compound selected from a group consisting of compounds respectively represented by following Chemical Formulas 1-1 to 1-4; and
a functional group as a substituent at a chain-end of the compound, wherein the functional group includes one selected from a group consisting of a hydroxyl group (—OH), methacrylate (-MA), a double hydroxyl group (-2OH), and a nitrile group (—CN):

OG Complex Work Unit Chemistry
wherein in each of the Chemical Formulas 1-1 to 1-4, each of m and n independently represents an integer of 1 or greater.