STUDY ON IONOMERS OF SULFONATED ETHYLENE- PROPYLENE COPOLYMERS I. ETHYLENE-PROPYLENE COPOLYMERS AND THEIR CHLOROSULFONATION
乙烯-丙烯共聚物磺酸盐离聚物的研究——Ⅰ.乙烯-丙烯共聚物及其氯磺化反应

The ethylene-propylene copolymers with various monomer ratio have been synthesized by using titanium catalyst. The composition, monomer sequence distribution, molecular weight and crystallinity for the copolymers were determined. The side group-SO2Cl was introduced to ethylene-propylene backbones through chlorosulfonation with SO2Cl2. Effects pf initiator and sulfuryl chloride agent on sulfonation in chlorosulfonated products were investigated. Structural analysis of the chlorosulfonated copolymer by 13C-NMR has shown that hydrogens on CH3 could be substituted by a -SO2CI group while those on CH2 substituted by either -SO2CI or -Cl group,but those on CH substituted by neither pendant groups.