• The production of Synthetic petrochemical based polymers nonrenewable resources are used and the ultimate fate of these large-scale commodity polymers are its two major drawbacks which are the hurdles in manufacturing process of High molecular weight polymers with desired properties.
• FeCl3×6H2O, RuCl3×H2O and FeCl2×4H2O are found to be bulk polymerization catalysts for the ring opening polymerization of ε-caprolactone (CL), δ-vaierolactone (VL), β- butyrolactone (BL), lactide (LA).
• The present patent discloses the Method of further enhancing the polymerization technique to synthesize polymers having desired physical characteristics such as average molecular weight with in an eco-friendly & cost effectively.

This invention discloses a process of activated monomer ring opening mode of polymerization for producing a polymer from a corresponding cyclic monomer such as lactide and lactones with an active catalyst to achieve high number average molecular weight (Mn) polymer having desired physical properties, characterized in the selected catalyst being simple halides containing Group 8 metals.

Characterising

• The catalyst used is water
• The mediating agents used are nucleophiles (such as the alcohol).
• The selected metals are environmentally benign metals (the constituents in mammalian anatomy).
• The monomer and the metal halide feed ratio is generally 200:1 molar ratio.
• The metal halide catalyst selected is for use with lactone monomers such as
• ε-caprolactone (CL), δ-vaierolactone (VL), β- butyrolactone (BL) and lactide (LA).
• The ratio of the monomer and the halide for CL polymers is 0.5 mL of CL (0.54 g, 4.71 mmol) & 23.6 pmol of metal halide.
• The ratio of the monomer and the halide for VL polymers is 0.25 mL of VL (0.27g, 2.69 mmol) & 13.5 pmoi of metal halide.
• The ratio of the monomer and the halide for BL polymers is 0.25 mL of BL (0.26g, 3.06 mmol) & 15.3 pmol of metal halide.
• The molecular weight Mn is further varied by varying the feed ratio of the monomer and the mediating agents.