Day 2 :
Keynote Forum
Kempanna S. Kanakikodia
PhD from Manipal Academy of Higher Education , Maniapa, Karanataka, India
Keynote: Sulfonated Mesoporous Polymer (MP-SO3H): A Highly Efficient Solid Acid Catalyst for Carboxymethylation of Alcohols to Alkyl Methyl Carbonate
Time : 09:00-09:45
Biography:
Mr. Kempanna S. Kanakikodi has completed his bachelor degree(BSc) from Karnataka University Dharwad, and masters degree at Ranni Channamma University Belagavi, Karnataka state, India. Currently persuing his PhD from Manipal Academy of Higher Education , Maniapa, Karanataka, India.
Abstract:
Acid catalyzed carboxymethylation of alcohols is an emerging organic transformation that has grabbed the attention of scientific community in recent years. In the present study, sulfonated mesoporous polymer (MP-SO3H) is presented as a highly active solid acid catalyst to convert a wide range of alcohols into alkyl methyl carbonates. The remarkable catalytic activity of MP-SO3H is comparable to that of reported homogeneous acid catalysts. A good correlation was established between the catalytic activity and textural properties of the material. An exceptional catalytic activity of MP-SO3H was observed for DMC mediated carboxymethylation of bio-derived alcohols which is unmatchable to conventional resins and zeolites. This superior activity of MP-SO3H is ascribed to its intrinsic mesoporosity, high acid strength and uniform coverage of surface area by active sites. The catalyst is recyclable, resistant towards leaching and can be used in successive runs without losing the original activity. To the best of our knowledge, MP-SO3H is the first solid acid catalyst to exemplify highest activity for the synthesis of different alkyl methyl carbonates using DMC. The protocol developed herein opens up new avenues to transform wide range of bio-alcohols into useful organic carbonates in the future
Keynote Forum
Samadov A.R.
professor at Tyume state university
Keynote: THE RESULT OF THE STUDY OF EUTECTICS IN THE SYSTEM Sm2O2S-Sm3S4.
Time : 09:45-10:30
Biography:
professor at Tyume state university, Institute of chemistry, Department of Inorganic and Physical Chemistry
Abstract:
The preparation process is divided into two main groups depending on the phase composition of the polycrystalline reaction product: the formation of Ln2O2S as the only polycrystalline phase and the preparation of several polycrystalline Ln2O2S phases. Based on the established chemistry of the interaction of metallic samarium with sulfur in a sealed ampoule, phase equilibria in the Sm – Sm2S3 – Sm2O3 system, the synthesis parameters of a mixture containing more than 98.5 mol.% Solid solution are determined Sm1+x S1-x ([Sm])1-y [ ]x)2x (Ñ… = 0–0,035, y = 0–1), saturated with excess samarium. According to the results of MSA, the composition of the eutectic was 65 mol% Sm3S4. The composition of the double eutectic has coordinates 0.65 Sm3S4, - 0.35 Sm2O2S and a calculated melting point of 1700K. As a result, the goal of the work was achieved.