6533b7d0fe1ef96bd125a239
RESEARCH PRODUCT
A contribution to the kinetics of the polymerization of styrene with CF3SO3H as catalyst
Nieves Cardona-sütterlinsubject
Materials sciencePolymers and PlasticsCationic polymerizationSolution polymerizationGeneral ChemistryCondensed Matter PhysicsStyrenechemistry.chemical_compoundMonomerChain-growth polymerizationchemistryPolymerizationPolymer chemistryMaterials ChemistryAddition polymerPolystyrenedescription
The time dependence of the cationic polymerization of styrene in CH2Cl2 with CF3SO3H as catalyst can be formally described as being first-order with respect to monomer concentration [M]0. The reaction rate shows a third-order dependence in catalyst concentration [C]0. A high polymer and a low polymer polystyrene fraction are found at [M]0>0.2 mole · l−. The reaction rate of the high polymer fraction is proportional to [C] 0 3 , that of the low polymer fraction probably proportional to [C] 0 2 . The polymerization active species may thus be triple ions in the first and ion pairs in the second case.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1978-01-01 | Polymer Bulletin |