Alcoholysis and aminolysis of Di-and trithioester chain-transfer agents of free-radical polymerization
Authors:
- 1 July 2006
- journal article
- Published by Pleiades Publishing Ltd in Polymer Science, Series A
- Vol. 48 (7) , 717-722
Abstract
The alcoholysis and aminolysis of (S)-1-phenylethyl-(O)-ethyl dithioxanthate, 1-phenylethyl dithiobenzoate, and bis(1-phenylethyl) trithiocarbonate have been studied. These compounds model end groups of polystyrenes prepared by the controlled radical polymerization carried out in the presence of di-and trithioesters. It has been shown that the yield of 1-phenylethylthiol is markedly dependent on the structure of ester. Possible mechanisms governing side reactions are considered, and conditions providing the quantitative yield of polystyrenes with end thiol groups have been estimated.Keywords
This publication has 6 references indexed in Scilit:
- The effect of mercapto- and thioacetate-modified EPDM on the curing parameters and mechanical properties of natural rubber/EPDM blendsEuropean Polymer Journal, 2003
- Thiocarbonylthio Compounds [SC(Ph)S−R] in Free Radical Polymerization with Reversible Addition-Fragmentation Chain Transfer (RAFT Polymerization). Role of the Free-Radical Leaving Group (R)Macromolecules, 2003
- Thiocarbonylthio Compounds (SC(Z)S−R) in Free Radical Polymerization with Reversible Addition-Fragmentation Chain Transfer (RAFT Polymerization). Effect of the Activating Group ZMacromolecules, 2003
- Free-Radical Polymerization of Styrene in Emulsion Using a Reversible Addition−Fragmentation Chain Transfer Agent with a Low Transfer Constant: Effect on Rate, Particle Size, and Molecular WeightMacromolecules, 2001
- Living Polymers by the Use of Trithiocarbonates as Reversible Addition−Fragmentation Chain Transfer (RAFT) Agents: ABA Triblock Copolymers by Radical Polymerization in Two StepsMacromolecules, 2000
- Functionalization of SBR copolymer by free radical addition of thiolsMacromolecular Chemistry and Physics, 1999