Synthesis and characterization of copolymers from hindered amines and vinyl monomers

Detalhes bibliográficos
Autor(a) principal: Chinelatto,Marcelo Aparecido
Data de Publicação: 2014
Outros Autores: Agnelli,José Augusto Marcondes, Canevarolo,Sebastião Vicente
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Polímeros (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006
Resumo: 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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spelling Synthesis and characterization of copolymers from hindered amines and vinyl monomersDegradationhindered aminephotooxidationpolymeric HALSstabilizerssynthesisNew 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.Associação Brasileira de Polímeros2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006Polímeros v.24 n.1 2014reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.4322/polimeros.2014.046info:eu-repo/semantics/openAccessChinelatto,Marcelo AparecidoAgnelli,José Augusto MarcondesCanevarolo,Sebastião Vicenteeng2014-04-03T00:00:00Zoai:scielo:S0104-14282014000100006Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2014-04-03T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Synthesis and characterization of copolymers from hindered amines and vinyl monomers
title Synthesis and characterization of copolymers from hindered amines and vinyl monomers
spellingShingle Synthesis and characterization of copolymers from hindered amines and vinyl monomers
Chinelatto,Marcelo Aparecido
Degradation
hindered amine
photooxidation
polymeric HALS
stabilizers
synthesis
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
author Chinelatto,Marcelo Aparecido
author_facet Chinelatto,Marcelo Aparecido
Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
author_role author
author2 Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
author2_role author
author
dc.contributor.author.fl_str_mv Chinelatto,Marcelo Aparecido
Agnelli,José Augusto Marcondes
Canevarolo,Sebastião Vicente
dc.subject.por.fl_str_mv Degradation
hindered amine
photooxidation
polymeric HALS
stabilizers
synthesis
topic Degradation
hindered amine
photooxidation
polymeric HALS
stabilizers
synthesis
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.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000100006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4322/polimeros.2014.046
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.24 n.1 2014
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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