2016-08-242016-08-241995-08-15http://hdl.handle.net/10919/72838A new method for preparing commercially valuable polymeric ketones is described. The method employs an .alpha.-amiononitrile as a monomeric unit whereby an amorphous, soluble polymer having protected carbonyl moiety is obtained. Upon deprotecting the carbonyl moiety, a crystalline polymeric ketone is obtained. The method allows production of polymeric ketone materials having aromatic, aliphatic or mixed aromatic/aliphatic backbones.application/pdfen-USPatenthttp://pimg-fpiw.uspto.gov/fdd/29/420/054/0.pdf8296135528/328528/171528/172528/173528/220528/228528/310528/321C07D295/145C07C317/24C08G61/125442029