Poly(styrene-co-butyl acrylate)/Clay Nanocomposite Latexes Synthesized via In Situ Atom Transfer Radical Polymerization in Miniemulsion: Activators Generated by Electron Transfer Approach
W ater born poly(styrene-butyl acrylate)/clay nanocomposite latexes were synthesized by a novel initiating system of activators generated by electron transfer (AGET) in a system of atom transfer radical polymerization (ATRP). Initially, the clay was swelled in a mixture of styrene, butyl a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | fas |
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Iran Polymer and Petrochemical Institute
2012-11-01
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| Series: | علوم و تکنولوژی پلیمر |
| Subjects: | |
| Online Access: | http://jips.ippi.ac.ir/article_538_9160b16523ec2ec4c9d05da04437f849.pdf |
| _version_ | 1819116745718235136 |
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| author | Lila Hatami Vahid Haddadi asl H. Roghani-Mamaqani L. Ahmadian-Alam M. Salami |
| author_facet | Lila Hatami Vahid Haddadi asl H. Roghani-Mamaqani L. Ahmadian-Alam M. Salami |
| author_sort | Lila Hatami |
| collection | DOAJ |
| description | W
ater born poly(styrene-butyl acrylate)/clay nanocomposite latexes were
synthesized by a novel initiating system of activators generated by
electron transfer (AGET) in a system of atom transfer radical polymerization
(ATRP). Initially, the clay was swelled in a mixture of styrene, butyl acrylate,
and hexadecane. The mixture was then sonicated to obtain a stable miniemulsion. To
synthesize poly(styrene-butyl acrylate)/clay nanocomposite latexes, the reducing
agent (ascorbic acid) was added dropwise to the reactor (to reduce termination reactions).
Particle size and particle size distribution of resulting nanocomposite latexes
were determined by dynamic light scattering (DLS). These latex particles were produced
with diameters in the size range of 138-171 nm. In addition, the increase in
clay content led to increased particles size. Number and weight-average molecular
weights of the resultant copolymer nanocomposites and their molecular weight distributions
were determined by gel permeation chromatography. The narrow molecular
weight distribution of the nanocomposites is an indication of a successful ATRP
which was accomplished in miniemulsion formation. Using
1
H NMR, copolymers
were characterized and the mol ratios of monomers in copolymer composition were
calculated. X-Ray diffraction and transmission electron microscopy results showed
the mixed intercalated and exfoliated morphologies of nanocomposites in which
homogeneous distributions of clay layers in the polymer matrix have been achieved. |
| first_indexed | 2024-12-22T05:21:58Z |
| format | Article |
| id | doaj.art-a6b9de5371704c4a8f1f5e698aac8489 |
| institution | Directory Open Access Journal |
| issn | 1016-3255 2008-0883 |
| language | fas |
| last_indexed | 2024-12-22T05:21:58Z |
| publishDate | 2012-11-01 |
| publisher | Iran Polymer and Petrochemical Institute |
| record_format | Article |
| series | علوم و تکنولوژی پلیمر |
| spelling | doaj.art-a6b9de5371704c4a8f1f5e698aac84892022-12-21T18:37:42ZfasIran Polymer and Petrochemical Instituteعلوم و تکنولوژی پلیمر1016-32552008-08832012-11-01241556710.22063/jipst.2012.538538Poly(styrene-co-butyl acrylate)/Clay Nanocomposite Latexes Synthesized via In Situ Atom Transfer Radical Polymerization in Miniemulsion: Activators Generated by Electron Transfer ApproachLila HatamiVahid Haddadi aslH. Roghani-MamaqaniL. Ahmadian-AlamM. Salami0دانشگاه صنعتی امیرکبیرW ater born poly(styrene-butyl acrylate)/clay nanocomposite latexes were synthesized by a novel initiating system of activators generated by electron transfer (AGET) in a system of atom transfer radical polymerization (ATRP). Initially, the clay was swelled in a mixture of styrene, butyl acrylate, and hexadecane. The mixture was then sonicated to obtain a stable miniemulsion. To synthesize poly(styrene-butyl acrylate)/clay nanocomposite latexes, the reducing agent (ascorbic acid) was added dropwise to the reactor (to reduce termination reactions). Particle size and particle size distribution of resulting nanocomposite latexes were determined by dynamic light scattering (DLS). These latex particles were produced with diameters in the size range of 138-171 nm. In addition, the increase in clay content led to increased particles size. Number and weight-average molecular weights of the resultant copolymer nanocomposites and their molecular weight distributions were determined by gel permeation chromatography. The narrow molecular weight distribution of the nanocomposites is an indication of a successful ATRP which was accomplished in miniemulsion formation. Using 1 H NMR, copolymers were characterized and the mol ratios of monomers in copolymer composition were calculated. X-Ray diffraction and transmission electron microscopy results showed the mixed intercalated and exfoliated morphologies of nanocomposites in which homogeneous distributions of clay layers in the polymer matrix have been achieved.http://jips.ippi.ac.ir/article_538_9160b16523ec2ec4c9d05da04437f849.pdfaget atrpnanocompositeminiemulsionpoly(styrene-co-butyl acrylate)aqueouse latex |
| spellingShingle | Lila Hatami Vahid Haddadi asl H. Roghani-Mamaqani L. Ahmadian-Alam M. Salami Poly(styrene-co-butyl acrylate)/Clay Nanocomposite Latexes Synthesized via In Situ Atom Transfer Radical Polymerization in Miniemulsion: Activators Generated by Electron Transfer Approach علوم و تکنولوژی پلیمر aget atrp nanocomposite miniemulsion poly(styrene-co-butyl acrylate) aqueouse latex |
| title | Poly(styrene-co-butyl acrylate)/Clay Nanocomposite
Latexes Synthesized via In Situ Atom Transfer
Radical Polymerization in Miniemulsion: Activators
Generated by Electron Transfer Approach |
| title_full | Poly(styrene-co-butyl acrylate)/Clay Nanocomposite
Latexes Synthesized via In Situ Atom Transfer
Radical Polymerization in Miniemulsion: Activators
Generated by Electron Transfer Approach |
| title_fullStr | Poly(styrene-co-butyl acrylate)/Clay Nanocomposite
Latexes Synthesized via In Situ Atom Transfer
Radical Polymerization in Miniemulsion: Activators
Generated by Electron Transfer Approach |
| title_full_unstemmed | Poly(styrene-co-butyl acrylate)/Clay Nanocomposite
Latexes Synthesized via In Situ Atom Transfer
Radical Polymerization in Miniemulsion: Activators
Generated by Electron Transfer Approach |
| title_short | Poly(styrene-co-butyl acrylate)/Clay Nanocomposite
Latexes Synthesized via In Situ Atom Transfer
Radical Polymerization in Miniemulsion: Activators
Generated by Electron Transfer Approach |
| title_sort | poly styrene co butyl acrylate clay nanocomposite latexes synthesized via in situ atom transfer radical polymerization in miniemulsion activators generated by electron transfer approach |
| topic | aget atrp nanocomposite miniemulsion poly(styrene-co-butyl acrylate) aqueouse latex |
| url | http://jips.ippi.ac.ir/article_538_9160b16523ec2ec4c9d05da04437f849.pdf |
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