US 9,809,680 B2
Amine scavengers for synthesis of polythioaminals
Dylan J. Boday, Tucson, AZ (US); Jeannette M. Garcia, San Leandro, CA (US); James L. Hedrick, Pleasanton, CA (US); Robert J. Ono, San Jose, CA (US); and Rudy J. Wojtecki, San Jose, CA (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on May 17, 2016, as Appl. No. 15/157,224.
Application 15/157,224 is a division of application No. 14/940,063, filed on Nov. 12, 2015, abandoned.
Prior Publication US 2017/0137572 A1, May 18, 2017
Int. Cl. C08G 75/02 (2016.01)
CPC C08G 75/02 (2013.01) 23 Claims
 
1. A method of forming a composition, comprising:
forming a reaction mixture comprising a hexahydrotriazine, a dithiol having the general structure HS—R1—SH, and an amine scavenger having a selective reactivity to amines in the reaction mixture, the amine scavenger being one or more materials selected from the group consisting of an isocyanate, a thiocyanate, an organic carbonate, an organic thioanhydride, an organic anhydride, a carbonyl imidazole, an organic oxalate, an organic lactide, and an organic succimide; and
forming a thioaminal polymer by heating the reaction mixture to a temperature of at least about 50° C.; wherein R1 is an organic or hetero-organic group.