US 11,753,503 B2
Supported onium salts as initiators for the synthesis of polycarbonates by copolymerization of CO2 with epoxides
Xiaoshuang Feng, Thuwal (SA); Naganatha Patil, Thuwal (SA); Caroline Luciani, Thuwal (SA); Yves Gnanou, Thuwal (SA); and Nikos Hadjichristidis, Thuwal (SA)
Assigned to KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, Thuwal (SA)
Appl. No. 17/51,292
Filed by King Abdullah University of Science and Technology, Thuwal (SA)
PCT Filed May 17, 2019, PCT No. PCT/IB2019/054109
§ 371(c)(1), (2) Date Oct. 28, 2020,
PCT Pub. No. WO2019/220414, PCT Pub. Date Nov. 21, 2019.
Claims priority of provisional application 62/672,807, filed on May 17, 2018.
Prior Publication US 2021/0070932 A1, Mar. 11, 2021
Int. Cl. C08G 64/34 (2006.01); C08G 65/10 (2006.01); C08G 65/26 (2006.01)
CPC C08G 65/105 (2013.01) [C08G 64/34 (2013.01); C08G 65/2603 (2013.01); C08G 65/2693 (2013.01)] 19 Claims
 
1. An initiator, comprising:
an insoluble portion including an onium cation attached to an insoluble support; and
an anion, wherein the anion is a counter-ion to the onium cation,
wherein the onium cation and the anion form an onium salt characterized by the formula Q+(R)nX−, wherein
Q is N, P, or S;
R is a butyl, octyl, or phenyl group;
n is 3 or 4; and
X is OH.