MONOMER REACTIVITY RATIO MEASUREMENT OF PERFLUOROMETHYL VINYL ETHER WITH SOME VINYL MONOMERS CONTAINING FLUORINE IN EMULSION COPOLYMERIZATION是什么意思 MONOMER REACTIVITY RATIO MEASUREMENT OF PERFLUOROMETHYL VINYL ETHER WITH SOME VINYL MONOMERS CONTAINING FLUORINE IN EMULSION COPOLYMERIZATION怎么读