Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Group 4 Metal Aryloxy Compounds
Categories for this Invention
Category: Chemistry & chemical Analysis
Industry: Catalysts & Chemical, Polymer
Applications: Polymerization catalyst/ biodegradable polymer/ Lactide polymerization
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Problem Statement
- Polymerization catalyst for polymerization of Lactide monomers are either a solvent, or a co-catalyst or an elaborate ligand or non-environment friendly conditions.
- All these factors are responsible for making the polymerization reaction process laborious, expensive and complicate.
- Further in some cases the catalyst used is highly toxic thereby making the resulting polymer incompatible for bio medial application.
- So a novel polymerization catalyst which is devoid of the above said draw back is the urgent need in the state of art.
Technology
- The present patent discloses synthesis of group 4 metal aryloxy compounds as bulk polymerization catalysts for lactide polymerization having a general molecular formula (M)(OC6Rs)n(OH-R’)m.
- The Group 4 metal (Ti, Zr Hf) aryloxy compounds are synthesized from Ti(O-iPr)4, Zr(O-iPr)4(HO-iPr) or Hf(O-tBu)4 and several phenols having different substituents on the phenyl ring, 1:4 stoichiometric ratio in toluene, employing the alcoholysis route.
- The synthesized aryloxy compounds have been characterized thoroughly by 1H and 13C NMR spectroscopy, electrospray ionization mass spectrometry (ESI-MS) and their purity has been assured by correct elemental analysis values.
Key Features / Value Proposition
- Polymerization Without any Solvent
- Cost-effective
- Environment Friendly Condition
- Biodegradable Polymer
- Does Not Require any Co-catalyst
- Reduced Toxicity & Living Polymer
- Produce High Molecular Weight Polymer
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Debashis Chakraborty
Department of Chemistry
Intellectual Property
- IITM IDF Number: 2215
- IP Patent Number: 406714 (Granted)
Technology Readiness Level
TRL- 3
Proof of Concept