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Codimerisation of styrene and α-methylstyrene in the presence of zeolites

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Title: Codimerisation of styrene and α-methylstyrene in the presence of zeolites
Authors: Grigor’eva, N.G. ngg-ink@mail.ru, Bubennov, S.V.1, Khalilov, L.M.1, Kutepov, B.I.1
Source: Applied Catalysis A: General. Nov2011, Vol. 407 Issue 1/2, p85-90. 6p.
Subjects: Inorganic synthesis, Dimers, Styrene, Alpha-methylstyrol, Zeolite catalysts, Chemical reactions, Temperature effect
Abstract: Abstract: The reaction of styrene with α-methylstyrene has been studied over Y, Beta and ZSM-12 zeolites at 80–120°C in the presence or absence of chlorobenzene. Homo- and codimers of styrene and α-methylstyrene were the main reaction products. The yield of dimers and their structure depends on zeolite type and the experimental conditions. Dimers were formed with greater selectively over zeolite HZSM-12 (S =80–83%), for which the structural features promote the synthesis of linear compounds. In the presence of the zeolites HY and HBeta, cyclic homo- and codimers were the predominant products. The yield of dimers increases with increased reaction temperature and catalyst concentration, and in the presence of solvent. All zeolites investigated showed high codimerisation activity on styrene and α-methylstyrene at 120°C. [Copyright &y& Elsevier]
Copyright of Applied Catalysis A: General is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 66402264
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PubTypeId: academicJournal
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  Data: Codimerisation of styrene and α-methylstyrene in the presence of zeolites
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  Data: <searchLink fieldCode="AR" term="%22Grigor’eva%2C+N%2EG%2E%22">Grigor’eva, N.G.</searchLink><i> ngg-ink@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Bubennov%2C+S%2EV%2E%22">Bubennov, S.V.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Khalilov%2C+L%2EM%2E%22">Khalilov, L.M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kutepov%2C+B%2EI%2E%22">Kutepov, B.I.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Catalysis+A%3A+General%22">Applied Catalysis A: General</searchLink>. Nov2011, Vol. 407 Issue 1/2, p85-90. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Inorganic+synthesis%22">Inorganic synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Dimers%22">Dimers</searchLink><br /><searchLink fieldCode="DE" term="%22Styrene%22">Styrene</searchLink><br /><searchLink fieldCode="DE" term="%22Alpha-methylstyrol%22">Alpha-methylstyrol</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolite+catalysts%22">Zeolite catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink>
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  Data: Abstract: The reaction of styrene with α-methylstyrene has been studied over Y, Beta and ZSM-12 zeolites at 80–120°C in the presence or absence of chlorobenzene. Homo- and codimers of styrene and α-methylstyrene were the main reaction products. The yield of dimers and their structure depends on zeolite type and the experimental conditions. Dimers were formed with greater selectively over zeolite HZSM-12 (S =80–83%), for which the structural features promote the synthesis of linear compounds. In the presence of the zeolites HY and HBeta, cyclic homo- and codimers were the predominant products. The yield of dimers increases with increased reaction temperature and catalyst concentration, and in the presence of solvent. All zeolites investigated showed high codimerisation activity on styrene and α-methylstyrene at 120°C. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Applied Catalysis A: General is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.apcata.2011.08.025
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Dimers
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      – SubjectFull: Styrene
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      – SubjectFull: Alpha-methylstyrol
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      – SubjectFull: Zeolite catalysts
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      – SubjectFull: Chemical reactions
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      – SubjectFull: Temperature effect
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      – TitleFull: Codimerisation of styrene and α-methylstyrene in the presence of zeolites
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              Text: Nov2011
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