Preparation and properties of poly(2,4-bisthio substituted 6-fluorine-containing group substituted 1,3,5-triazine)s

Polycondensation of 6-fluorine-containing group substituted 1,3,5-triazine- 2,4-dithiols with dibromododecane or fluorinated diiodoalkanes has been inv estigated to determine optimal conditions including reaction temperature, t ime, and accelerators, giving poly(2,4-bisthio substituted 6-fluorine-conta ining group substituted 1,3,5-triazine)s. The inherent viscosity and molecu lar weight were influenced by the fluorine-containing branches in 6-substit uted 1,3,5-triazine-2,4-dithiols and the kind of the dihalide compounds. Po ly(2,4-bisthio substituted 6-fluorine-containing group substituted 1,3,5-tr iazine)s swelled in toluene and octane, but were soluble in tetrahydrofuran and chloroform. The fluorine-containing branches in 6-substituted 1,3,5-tr iazine-2,4-dithiols and the kind of the dihalide compounds had a significan t effect on the contact angles and surface free energies of the fluorine-co ntaining polymers. Flexible fluorine-containing branches gave high contact angles for water and CH2I2 and low surface free energies. fluorine-containi ng polymers had grass transition temperatures of 5 similar to 85 degrees C and melting points of 79 similar to 120 degrees C. It is concluded that the presented fluorine-containing polymers have characteristics of fluorinated polymers and good processing properties.