Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study

Detalhes bibliográficos
Autor(a) principal: Giri,Tapan Kumar
Data de Publicação: 2015
Outros Autores: Pure,Sanjeet, Tripathi,Dulal Krishna
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=S0104-14282015000200168
Resumo: The graft copolymer of locust bean gum (LBG) and acrylamide has been synthesized by microwave assisted method using potassium persulphate (KPS) as an initiator in aqueous medium. Different reaction parameters such as time, initiator concentration, monomer concentration, polymer concentration, and microwave power were studied to get maximum graft copolymer. The grafted copolymer was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The graft copolymer exhibited pH switching on-off behavior depending on the pH of the external medium. Flocculation capacity of LBG and LBG-graft-polyacrylamide for both coking and non-coking coals has been studied. Results indicated that the graft copolymer exhibited good flocculation properties compared to native polymer. The graft copolymer was non-toxic in the acute toxicity study, since the acute single dose did not cause any toxic signs, or symptoms. All mice treated with the graft copolymer survived beyond the 14 days of observation period.
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spelling Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity studybiopolymersgrafting reactionmicrowave synthesisflocculationswellingThe graft copolymer of locust bean gum (LBG) and acrylamide has been synthesized by microwave assisted method using potassium persulphate (KPS) as an initiator in aqueous medium. Different reaction parameters such as time, initiator concentration, monomer concentration, polymer concentration, and microwave power were studied to get maximum graft copolymer. The grafted copolymer was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The graft copolymer exhibited pH switching on-off behavior depending on the pH of the external medium. Flocculation capacity of LBG and LBG-graft-polyacrylamide for both coking and non-coking coals has been studied. Results indicated that the graft copolymer exhibited good flocculation properties compared to native polymer. The graft copolymer was non-toxic in the acute toxicity study, since the acute single dose did not cause any toxic signs, or symptoms. All mice treated with the graft copolymer survived beyond the 14 days of observation period.Associação Brasileira de Polímeros2015-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282015000200168Polímeros v.25 n.2 2015reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.1717info:eu-repo/semantics/openAccessGiri,Tapan KumarPure,SanjeetTripathi,Dulal Krishnaeng2015-05-27T00:00:00Zoai:scielo:S0104-14282015000200168Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2015-05-27T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
title Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
spellingShingle Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
Giri,Tapan Kumar
biopolymers
grafting reaction
microwave synthesis
flocculation
swelling
title_short Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
title_full Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
title_fullStr Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
title_full_unstemmed Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
title_sort Synthesis of graft copolymers of acrylamide for locust bean gum using microwave energy: swelling behavior, flocculation characteristics and acute toxicity study
author Giri,Tapan Kumar
author_facet Giri,Tapan Kumar
Pure,Sanjeet
Tripathi,Dulal Krishna
author_role author
author2 Pure,Sanjeet
Tripathi,Dulal Krishna
author2_role author
author
dc.contributor.author.fl_str_mv Giri,Tapan Kumar
Pure,Sanjeet
Tripathi,Dulal Krishna
dc.subject.por.fl_str_mv biopolymers
grafting reaction
microwave synthesis
flocculation
swelling
topic biopolymers
grafting reaction
microwave synthesis
flocculation
swelling
description The graft copolymer of locust bean gum (LBG) and acrylamide has been synthesized by microwave assisted method using potassium persulphate (KPS) as an initiator in aqueous medium. Different reaction parameters such as time, initiator concentration, monomer concentration, polymer concentration, and microwave power were studied to get maximum graft copolymer. The grafted copolymer was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The graft copolymer exhibited pH switching on-off behavior depending on the pH of the external medium. Flocculation capacity of LBG and LBG-graft-polyacrylamide for both coking and non-coking coals has been studied. Results indicated that the graft copolymer exhibited good flocculation properties compared to native polymer. The graft copolymer was non-toxic in the acute toxicity study, since the acute single dose did not cause any toxic signs, or symptoms. All mice treated with the graft copolymer survived beyond the 14 days of observation period.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-01
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=S0104-14282015000200168
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282015000200168
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-1428.1717
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.25 n.2 2015
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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