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pro vyhledávání: '"Umesh Makwana"'
Autor:
Umesh Makwana, Virendrakumar Gupta
Publikováno v:
Journal of Macromolecular Science, Part A. 58:820-834
Three MgCl2 supported TiCl4 pro-catalysts; Cat-A, Cat-B and Cat-C were synthesized. Cat-A was synthesized without any internal Lewis base (ILB); while Cat-B and Cat-C were synthesized using diisobu...
Publikováno v:
Designed Monomers and Polymers. 17:582-589
Stabilized polypropylene synthesis is carried out using supported titanium catalyst system in presence of phenols. The effect of phenolic compounds such as 2,2′-methylenebis(4-tert-butyl-6-methylphenol) (PH1) and 4,4′-methylenebis(2,6-di-tert-but
Publikováno v:
Journal of Applied Polymer Science. 125:896-901
Magnesium dichloride supported titanium catalyst incorporated with varying concentration of ethylbenzoate and diisobutyl phthalate together as internal donor are synthesized. The synthesized catalysts are characterized and compared with respect to co
Autor:
Virendrakumar Gupta, Vallabhbhai Patel, Harshad Ramdas Patil, Gurmeet Singh, Dhananjay Ghelabhai Naik, Umesh Makwana
Publikováno v:
Catalysis Letters. 131:624-631
High performance MgCl2 supported titanium catalyst having diisobutyl phthalate (DIBP) as internal donor has been synthesized. The organic components present in the catalyst have been studied through FTIR, 1D and 2D NMR spectroscopy. The results indic
Publikováno v:
Macromolecular Chemistry and Physics. 210:69-76
An insight on the influence of ethyl benzoate (EB) and diisobutyl phthalate (DIBP) as internal donors, differing in coordination nature on the structural aspects of MgCl 2 matrix in high-performance MgCl 2 -supported titanium catalysts was developed
Autor:
Umesh Makwana, Bhavesh K. Desai, Hiren M. Bhajiwala, Gurmeet Singh, Rajendra B. Patankar, Harshad Patil, Virendra K. Gupta
Publikováno v:
e-Polymers. 12
Long chain aliphatic ester, isopropyl myristate, was synthesized using energy efficient microwave irradiation technique. The iso propyl myristate forms complexes with titanium tetrachloride in different mole ratios. The nature of chemical bonding bet