Invention Grant
- Patent Title: Purification of functionalized triblock copolymers via methanol trituration
- Patent Title (中): 通过甲醇研磨纯化官能化三嵌段共聚物
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Application No.: US13938874Application Date: 2013-07-10
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Publication No.: US08952126B2Publication Date: 2015-02-10
- Inventor: Andrew J. Myles , Karen A. Moffat , Jordan H. Wosnick , Valerie M. Farrugia
- Applicant: Xerox Corporation , National Research Council of Canada
- Applicant Address: US CT Norwalk CA
- Assignee: Xerox Corporation,National Research Council of Canada
- Current Assignee: Xerox Corporation,National Research Council of Canada
- Current Assignee Address: US CT Norwalk CA
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: C08F6/10
- IPC: C08F6/10 ; C08F6/28 ; C08F6/12 ; C08F6/08 ; C08G63/88 ; C08G63/89 ; C08G63/91
Abstract:
A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1.
Public/Granted literature
- US20150018498A1 PURIFICATION OF FUNCTIONALIZED TRIBLOCK COPOLYMERS VIA METHANOL TRITURATION Public/Granted day:2015-01-15
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