Abstract:
This invention describes metal salts of amino acids for the copolymerization of carbon dioxide
and epoxides. The salts are prepared by the reaction of low cost, biodegradable amino acids
selected from the group glycine, aspartic acid, glutamic acid, cysteine etc with metal precursors
such as zinc(II) chloride, zinc(II) acetate, cobalt(N) chloride, copper(II)ch!oride, nickel(II)
chloride etc in a protic reaction solvent. Thus obtained metal salts of amino acids derived from
low cost, biodegradable amino acids have been used as catalyst for the synthesis of
poly(alkylene carbonate) polymers from the copolymerization of carbon dioxide and epoxides.
The conversion of epoxides is in the range of 40-80% and selectivity of poly(alkylene
carbonate) polymers is 100%.
Applicants
1. COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
ANUSANDHAN BHAWAN 2, RAFI MARG NEW DELHI-110001, INDIA
Inventors
1. PADMA LATHA PATNAM
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTARAKHAND-248005, INDIA
2. PAWAN KUMAR
INDIAN INSTITUTE OF PETROLEUM, P.O.IIP, MOHKAMPUR, UTTARAKHAND-248005, INDIA
3. SUMAN LATA JAIN
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTARKHAND-248005, INDIA
4. SIDDHARTH SANKAR RAY
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTRAKHAND-248005, INDIA
Specification
1. PADMA LATHA PATNAM
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTARAKHAND-248005, INDIA
2. PAWAN KUMAR
INDIAN INSTITUTE OF PETROLEUM, P.O.IIP, MOHKAMPUR, UTTARAKHAND-248005, INDIA
3. SUMAN LATA JAIN
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTARKHAND-248005, INDIA
4. SIDDHARTH SANKAR RAY
INDIAN INSTITUTE OF PETROLEUM, P.O. IIP, MOHKAMPUR, UTTRAKHAND-248005, INDIA
