Effect of Supports on the Catalytic Hydrogenation of Polystyrene

The heterogeneous catalytic hydrogenation of polystyrene dissolved in cyclohexane over Pd-containing catalysts have been investigated in a batch reactor. Ultraviolet technique was employed to monitor the hydrogenation extent. The catalyst properties were modified by sol–gel methods. The effects of t...

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Bibliographic Details
Published inTopics in catalysis Vol. 55; no. 7-10; pp. 498 - 504
Main Author Almusaiteer, Khalid A.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.07.2012
Subjects
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
Polystyrene
Polymer degradation
Hydrogenation
FTIR
Poly(vinylcyclohexane) (PVCH)
Polydispersity
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Summary:The heterogeneous catalytic hydrogenation of polystyrene dissolved in cyclohexane over Pd-containing catalysts have been investigated in a batch reactor. Ultraviolet technique was employed to monitor the hydrogenation extent. The catalyst properties were modified by sol–gel methods. The effects of temperature and catalyst support were investigated over the ranges 500–1,500 psig and 138 to 190 °C. In each case, fully saturated materials were obtained with no chain scission (i.e., degradation). The rate of hydrogenation showed strong dependence on the catalyst support.
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-012-9821-3