Synthesis and characterization of copolymers from hindered amines and vinyl monomers

Synthesis and characterization of copolymers from hindered amines and vinyl monomers

New copolymers from hindered amines and vinyl monomers were synthesized by radical chain polymerization. To obtain polymeric HALS, acrylamide-(1ATP) and acrylate-(4ATP) monomers, derivatives from 2,2,6,6-tetramethylpiperidine and 2,2,6,6-tetramethyl-4-piperidinol were synthesized. The radical chain polymerization of 1ATP with styrene (Sty) using 1-butanethiol (BTN) resulted in a copolymer with 95 units of Sty and 15 units of 1ATP. The radical chain polymerization of 1ATP and vinyl acetate (VAc) has produced only 1ATP homopolymer. In the chain polymerization of 4ATP with Sty or VAc, the hydrogen atom bonded to the nitrogen of 4ATP is labile enough to originate another radical at this site. The steric hindrance imposed by methyl groups on this bonding site hampers its reaction with other propagating species and the formation of a copolymer or network structure will be dependent on the size of the pendent group in the vinyl monomer.

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Main Authors: Chinelatto,Marcelo Aparecido, Agnelli,José Augusto Marcondes, Canevarolo,Sebastião Vicente
Format: Digital revista
Language:English
Published: Associação Brasileira de Polímeros 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006
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spelling oai:scielo:S0104-142820140001000062014-04-03Synthesis and characterization of copolymers from hindered amines and vinyl monomersChinelatto,Marcelo AparecidoAgnelli,José Augusto MarcondesCanevarolo,Sebastião Vicente Degradation hindered amine photooxidation polymeric HALS stabilizers synthesis New copolymers from hindered amines and vinyl monomers were synthesized by radical chain polymerization. To obtain polymeric HALS, acrylamide-(1ATP) and acrylate-(4ATP) monomers, derivatives from 2,2,6,6-tetramethylpiperidine and 2,2,6,6-tetramethyl-4-piperidinol were synthesized. The radical chain polymerization of 1ATP with styrene (Sty) using 1-butanethiol (BTN) resulted in a copolymer with 95 units of Sty and 15 units of 1ATP. The radical chain polymerization of 1ATP and vinyl acetate (VAc) has produced only 1ATP homopolymer. In the chain polymerization of 4ATP with Sty or VAc, the hydrogen atom bonded to the nitrogen of 4ATP is labile enough to originate another radical at this site. The steric hindrance imposed by methyl groups on this bonding site hampers its reaction with other propagating species and the formation of a copolymer or network structure will be dependent on the size of the pendent group in the vinyl monomer.info:eu-repo/semantics/openAccessAssociação Brasileira de PolímerosPolímeros v.24 n.1 20142014-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006en10.4322/polimeros.2014.046
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Chinelatto,Marcelo Aparecido
Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
spellingShingle Chinelatto,Marcelo Aparecido
Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
Synthesis and characterization of copolymers from hindered amines and vinyl monomers
author_facet Chinelatto,Marcelo Aparecido
Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
author_sort Chinelatto,Marcelo Aparecido
title Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title_short Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title_full Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title_fullStr Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title_full_unstemmed Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title_sort synthesis and characterization of copolymers from hindered amines and vinyl monomers
description New copolymers from hindered amines and vinyl monomers were synthesized by radical chain polymerization. To obtain polymeric HALS, acrylamide-(1ATP) and acrylate-(4ATP) monomers, derivatives from 2,2,6,6-tetramethylpiperidine and 2,2,6,6-tetramethyl-4-piperidinol were synthesized. The radical chain polymerization of 1ATP with styrene (Sty) using 1-butanethiol (BTN) resulted in a copolymer with 95 units of Sty and 15 units of 1ATP. The radical chain polymerization of 1ATP and vinyl acetate (VAc) has produced only 1ATP homopolymer. In the chain polymerization of 4ATP with Sty or VAc, the hydrogen atom bonded to the nitrogen of 4ATP is labile enough to originate another radical at this site. The steric hindrance imposed by methyl groups on this bonding site hampers its reaction with other propagating species and the formation of a copolymer or network structure will be dependent on the size of the pendent group in the vinyl monomer.
publisher Associação Brasileira de Polímeros
publishDate 2014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006
work_keys_str_mv AT chinelattomarceloaparecido synthesisandcharacterizationofcopolymersfromhinderedaminesandvinylmonomers
AT agnellijoseaugustomarcondes synthesisandcharacterizationofcopolymersfromhinderedaminesandvinylmonomers
AT canevarolosebastiaovicente synthesisandcharacterizationofcopolymersfromhinderedaminesandvinylmonomers
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