RAFT dispersion polymerization in organic medium : synthesis of block copolymers and simultaneous self-assembly
type: Dataset
contact point: Organization
  fn: CCSD
keyword: no-data
keyword: chiminorchemical-sciencesinorganic-chemistry
keyword: raft
keyword: acrylates
keyword: dispersion
keyword: copolymeres-a-blocs
keyword: auto-assemblage
keyword: polymerisation-radicalaire-controlee
keyword: theses
keyword: infoeu-reposemanticsdoctoralthesis
landing page: https://theses.hal.science/tel-00812126
description: RAFT-mediated controlled free-radical polymerization has been developed in an oil surfactant-free dispersed system: this system involves the dispersion polymerization of methyl acrylate in isododecane using soluble macromolecular RAFT agents (poly(2-ethylhexyl acrylate)) based either on a dithiobenzoate reactive group or on a trithiocarbonate one. The conditions to find a good control over the polymer chain growth together with formation of well-defined, self-stabilized particles have been examined. The process takes advantage of the in situ formation of amphiphilic block copolymers that self-assemble simultaneously with the growth step to form block copolymer micelles. The reactions are performed in very simple conditions, at high concentration and with a limited number of reactants. The comparison of the two systems, together with a detailed 2D chromatography characterization of the block copolymers enabled us to propose a mechanism. It appears that the quality of control over both the macromolecular structure and the colloidal characteristics strongly depends on the reactivity of the macroRAFT agent and its solvophilic/solvophobic character.
identifier: NNT: 2008PA066604
issued: 2026-05-11T13:10:55.674814
language: fr
modified: 2026-05-11T13:10:55.674819

RAFT dispersion polymerization in organic medium : synthesis of block copolymers and simultaneous self-assembly
type: Distribution
access URL: https://theses.hal.science/tel-00812126
format: HTML
issued: 2026-05-11T13:10:55.700413
modified: 2026-05-11T13:10:55.657675

test_moissonnage_selune
type: Agent