Phenol based resin as alkylation catalyst |
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| Affiliation: | 1. Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People''s Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, China;2. School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China;3. Chongqing Institute of Forensic Science, Chongqing 400021, China;1. Shanghai Institute of Technology, Shanghai, 201418, PR China;2. Shanghai Kangda New Materials Inc., Shanghai, 201420, PR China;3. University of Ngaoundere, Ngaoundere, P. O. BOX 454, 999108, Cameroon;1. Department of Mining Engineering and Natural Resources – Escola Politècnica Superior d’Enginyeria de Manresa, Universitat Politècnica de Catalunya (UPC-BarcelonaTech), Av. Bases de Manresa 61-73, E-08242 Manresa, Catalonia, Spain;2. Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain;1. Department of Chemical Engineering and Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Amrita University, India;2. Centre of Excellence in Advanced Materials and Green Technologies(CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Amrita University, India |
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| Abstract: | Conventional cation exchange resin catalysts, used in the phenyl xylyl ethane (PXE) synthesis was found to deactivate after a few cycles. In the present study efforts were made to determine the concentration of residual double bonds of styrene-divinylbenzene based ion exchange resin catalyst. Bromine value of 6–7 was obtained for Indion-130 and Amberlyst-15. An alternate catalyst based on styrenated phenol and formaldehyde which does not use conventional vinylic chemistry for polymer formation was developed. PXE synthesis was explored using these new catalysts. An improvement in the catalyst performance in PXE synthesis was observed, compared to conventional catalysts. Reusability and temperature stability of the new catalysts have been verified by carrying out esterification of phthalic anhydride with 2-ethyl hexanol. |
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