ELASTOMERS BASED ON POLY(HEXAFLUOROPROPYLENE OXIDE) CROSS-LINKED VIA TRIAZINE GROUPS

Poly(hexafluoropropylene oxide), poly(HFPO), networks were prepared from functional polymers by end-linking via triazine groups. The networks were characterised by NMR spectroscopy and by determination of the number of network chains from the shear modulus, and were shown to contain both triazine crosslinks and imidoylamidine links. The mechanical, thermal and chemical properties of the networks were investigated by a range of techniques. A network formed from fully difunctional poly(HFPO) had excellent elastomeric properties above -15 degrees C, and was thermally stable up to 270 degrees C.