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)
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.