Provided herein are copolymers that comprise copolymerized residues of a perfluorotrivinyltriazine monomer of Formula 1. Preferred Rf groups include, without limitation, —(CF2)n— (n=1-6); —(CF2)m—[OCF(CF3)CF2]p— (m=1-4, p=1-4); and —[(CF(CF3)—O)x—(CF2)k]— (x=1-3, k=1-5). Preferred comonomers for copolymerization with the perfluorotrivinyltriazine monomer (1) include, without limitation, tetrafluoroethylene (TFE); vinylidene fluoride (VF2); hexafluoropropylene (HFP); vinyl fluoride (VF); EVE; PSEPVE; perfluoro-(long chain vinyl ethers); E; P; PFBE; PEVE; EVE-OH; EVE-P; PDD; and the cure-site monomers BTFB, ITFB, 8-CNVE, 8-SAVE, and the like. Also provided are methods of synthesizing the copolymers and articles comprising the copolymers.