Turkish Journal of Chemistry
Abstract
Different mixed ligand lanthanocene complexes along with Al(i-Bu)_3 are capable of synthesizing partially syndiotactic high molecular weight polymethylmethacrylate. The Schiff base derivative of mixed ligand lanthanocene complexes (1-4) showed better efficiency (Mv = 227 \times 10^3-354 \times 10^3) compared to the methoxyethylindenyl derivative of mixed ligand lanthanocene complexes (5-9) (Mv = 72 \times 10^3, 172 \times 10^3). The effects of the catalyst, temperature, catalyst/MMA molar ratio, and catalyst/Al(i-Bu)_3 molar ratio on the polymerization of MMA at 60 °C suggested that ligand size and radius of rare earth metals play an important role in determining the activity of the catalyst.
DOI
-
Keywords
Tridentate Schiff base, lanthanocene, methoxyethylindene lanthanocene, MMA, polymerization
First Page
471
Last Page
477
Recommended Citation
YOUSAF, MUHAMMAD; CHATHA, AFTAB AHMAD; JABBAR, ABDUL; AHMAD, H. BADARUDDIN; ZAHOOR, AMEER FAWAD; KHOSA, MUHAMMAD KALEEM; and ALAM, SYED SARWAR (2007) "Role of Tridentate Schiff Base and Methoxyethylindenyl Derivatives of Lanthanocene Complexes for the Synthesis of High Molecular Weight Polymethyl Methacrylate (PMMA)," Turkish Journal of Chemistry: Vol. 31: No. 4, Article 10. Available at: https://journals.tubitak.gov.tr/chem/vol31/iss4/10