6533b829fe1ef96bd128a1e0

RESEARCH PRODUCT

Sequential conversion of orthogonally functionalized diblock copolymers based on pentafluorophenyl esters

Katja NillesPatrick Theato

subject

Polymers and PlasticsOrganic ChemistryRadical polymerizationChain transferPentafluorophenyl estersMethacrylatechemistry.chemical_compoundAnilinechemistryPolymerizationSulfanylPolymer chemistryMaterials ChemistryCopolymerOrganic chemistry

description

Statistic and block copolymers exhibiting activated ester side groups were synthesized by reversible addition-fragmentation chain transfer polymerization in the presence of cumyl dithiobenzoate, benzyl dithiobenzoate, and 4-cyano-4-((thiobenzoyl)sulfanyl)pentanoic acid as chain transfer agents. Pentafluorophenyl methacrylate and pentafluorophenyl 4-vinylbenzoate were used to enable a sequential functionalization of the obtained copolymers by conversion of the activated esters with different amines. 1H NMR spectroscopy, 19F NMR spectroscopy, and FTIR spectroscopy showed the successful step-by-step conversion of the different activated esters by aniline followed by aliphatic amines, thereby realizing a sequential functionalization of block copolymers with just one specific reactive group. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 3683–3692, 2010

https://doi.org/10.1002/pola.24152