Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system
The aim of this study was to incorporate an alpha-olefin (1-hexene or 1-dodecene) in a high cis polybutadiene chain, using a neodymium versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system. The influence of alpha-olefin on polymerization reaction and polymer characteristics, using di...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Polímeros
2014-01-01
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| Series: | Polímeros |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000200004&lng=en&tlng=en |
| _version_ | 1818951468686770176 |
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| author | Gustavo Monteiro da Silva Ivana Lourenço de Mello Ferreira Marcia Parente Melo da Costa Neusa Maria Tocchetto Pires Marcos Antonio da Silva Costa |
| author_facet | Gustavo Monteiro da Silva Ivana Lourenço de Mello Ferreira Marcia Parente Melo da Costa Neusa Maria Tocchetto Pires Marcos Antonio da Silva Costa |
| author_sort | Gustavo Monteiro da Silva |
| collection | DOAJ |
| description | The aim of this study was to incorporate an alpha-olefin (1-hexene or 1-dodecene) in a high cis polybutadiene chain, using a neodymium versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system. The influence of alpha-olefin on polymerization reaction and polymer characteristics, using different weight ratios of butadiene/α-olefin, was evaluated. The copolymers were characterized by SEC, FTIR, NMR, TGA and viscosimetric analysis. The thermal stability of the polymer tended to increase with incorporation of alpha-olefins, while its microstructure was not affected. The weight average molecular mass (Mw) tended to increase and the polymerization conversion tended to decrease with increasing alpha-olefins content. The copolymers showed a lower intrinsic viscosity than for the homopolymer. The results indicated that the alpha-olefins were incorporated in the polybutadiene chain. |
| first_indexed | 2024-12-20T09:34:58Z |
| format | Article |
| id | doaj.art-52a516c23735471fafcbfae252cac057 |
| institution | Directory Open Access Journal |
| issn | 1678-5169 |
| language | English |
| last_indexed | 2024-12-20T09:34:58Z |
| publishDate | 2014-01-01 |
| publisher | Associação Brasileira de Polímeros |
| record_format | Article |
| series | Polímeros |
| spelling | doaj.art-52a516c23735471fafcbfae252cac0572022-12-21T19:45:02ZengAssociação Brasileira de PolímerosPolímeros1678-51692014-01-0124215316110.4322/polimeros.2014.040S0104-14282014000200004Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst systemGustavo Monteiro da Silva0Ivana Lourenço de Mello Ferreira1Marcia Parente Melo da Costa2Neusa Maria Tocchetto Pires3Marcos Antonio da Silva Costa4Universidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroThe aim of this study was to incorporate an alpha-olefin (1-hexene or 1-dodecene) in a high cis polybutadiene chain, using a neodymium versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system. The influence of alpha-olefin on polymerization reaction and polymer characteristics, using different weight ratios of butadiene/α-olefin, was evaluated. The copolymers were characterized by SEC, FTIR, NMR, TGA and viscosimetric analysis. The thermal stability of the polymer tended to increase with incorporation of alpha-olefins, while its microstructure was not affected. The weight average molecular mass (Mw) tended to increase and the polymerization conversion tended to decrease with increasing alpha-olefins content. The copolymers showed a lower intrinsic viscosity than for the homopolymer. The results indicated that the alpha-olefins were incorporated in the polybutadiene chain.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000200004&lng=en&tlng=enCopolymerization1,3-butadienealpha-olefinZiegler-Natta catalystneodymium |
| spellingShingle | Gustavo Monteiro da Silva Ivana Lourenço de Mello Ferreira Marcia Parente Melo da Costa Neusa Maria Tocchetto Pires Marcos Antonio da Silva Costa Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system Polímeros Copolymerization 1,3-butadiene alpha-olefin Ziegler-Natta catalyst neodymium |
| title | Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system |
| title_full | Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system |
| title_fullStr | Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system |
| title_full_unstemmed | Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system |
| title_short | Copolymerization of 1-hexene and 1-dodecene with 1,3-butadiene by a versatate/diisobutylaluminum hydride/t-butyl chloride catalyst system |
| title_sort | copolymerization of 1 hexene and 1 dodecene with 1 3 butadiene by a versatate diisobutylaluminum hydride t butyl chloride catalyst system |
| topic | Copolymerization 1,3-butadiene alpha-olefin Ziegler-Natta catalyst neodymium |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282014000200004&lng=en&tlng=en |
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