• CSIR - Central Salt & Marine Chemicals Research Institute
  • G20
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डॉ। उमा चटर्जी
Group Member

प्रधान वैज्ञानिक

  • umac@csmcri.res.in
  • | Ext: 7320

झिल्ली विज्ञान और पृथक्करण प्रौद्योगिकी प्रभाग

Qualification
Academic Qualifications

Research
Research Activities

polymer synthesis by controlled radical polymerization like ATRP, RAFT. Organic coating, Ion exchange membrane for water purification, recovery of high value chemicals etc, polymer nanocomposite.

-|| Research Highlights ||-

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  • 1. The Beneficial Effect of Small Amount of Water in the Ambient Temperature Atom Transfer Radical Homo and Block Co-polymerization of Methacrylates. Chatterjee, U., Jewrajka, S. K. and Mandal, B. M. Polymer, 2005, 46, 1575-1582.

     2. The Amphiphilic Block Copolymers of 2-(Dimethylamino)ethyl methacrylate and Methyl methacrylate: Synthesis by Atom Transfer Radical Polymerization and Solution Properties. Chatterjee, U., Jewrajka, S. K. and Mandal, B. M. Polymer 2005, 46, 10699-10708.

     3.  Synthesis of Block Copolymer-Stabilized Au-Ag Alloy Nanoparticles and Fabrication of Poly(methyl methacrylate)/Au-Ag Nanocomposite Film. Chatterjee, U and Jewrajka, S. K.  J. Colloid and Int. Sci. 2007, 313, 717 (Among most accessed top 25 articles in the year 2007).

     4. Dispersion of Functionalized Silver Nanoparticles in Polymer Matrices: Stability, Characterization and Physical Properties. Chatterjee, U., Jewrajka, S. Kand Guha, S. Polymer composites 2009, 30, 827-8834.

     5. Homogeneous Atom Transfer Radical Polymerization of Methyl Methacrylate at Ambient Temperature in Aqueous Ethanol. Jewrajka, S. K., Chatterjee, U. and Mandal, B. M. Macromolecules 2004, 37, 4325-4328.

     6. Atom Transfer Radical Polymerization of Methyl Methacrylate at Ambient Temperature Using Soluble Cu(I) Complex Catalysts Formed With Mixed Ligands of Multidentate Amines and Halide Ions. Chatterjee, D. P.; Chatterjee, U. and Mandal, B. M.  J. Polym. Sci. Part A. Polym. Chem. 2004, 42, 4132-4142.

      7. Block Copolymers Mediated Synthesis of Amphiphilic Gold Nanoparticle in Water and Aqueous THF Medium: An Approach for the Preparation of Polymer-Gold Nanocomposites. Jewrajka, S. K and Chatterjee U. J. Polym. Sci. Part A, Polym. Chem. 2006, 44, 1841-1854.

     8. Synthesis and spectroscopy of CdS nanoparticles in amphiphilic diblock  copolymer micelles.  Mandal, D. and Chatterjee, U. J. Chem. Phys. 2007, 126, 134507-134515.

    9.  Fluorescence probing of block copolymeric micelles using Coumarin 153. Basu, S; Chatterjee, D. P.; Chatterjee, U.  Mondal, S; Mandal, D. Colloids and Surfaces, A: Physicochemical and Engineering Aspects. 2009, 341, 13 20.

    10. Direct observation of time-dependent photoluminescence spectral shift in CdS nanoparticles synthesized in polymer solutions. Mandal, D.; Hosoi, H.; Chatterjee, U.; Tahara, T. Journal of Chemical Physics, 2009, 130, 034902/1-034902/8.

     11. Poly(styrene-b-2-(N,N-dimethylamino)ethyl methacrylate) diblock copolymers:     Micellization and application in the synthesis of photoluminescent CdS nanoparticles. Basu, S.; Mondal, S.; Chatterjee, U.; Mandal, D. Materials Chemistry and Physics, 2009, 116, 578-585.

    12. Route to co-acrylic modified alkyd resins via a controlled polymerization technique Dziczkowski, J.; Chatterjee, U.; Soucek, M. Progress in Organic Coatings, 2012, 73, 355-365.

    13. Synthesis of amphiphilic triblock copolymers for the formation of magnesium fluoride (MgF2) nanoparticles Bas, S.; Chatterjee U.; Soucek, M. D. Journal of Applied Polymer Science, 2012 (ASAP Article)

    14.  Polyester/Poly(meth)acrylate Block Copolymers by Combined Polycondensation/ATRP: Characterization and Properties Chatterjee, U.; Wang, X.; Jewrajka S. K. and Soucek, M. D. Macromolecular Chemistry and Physics,2011, 212, 1879-1890.

  • Patent:

     1. An Atom Transfer Radical Polymerization Process using Novel Soluble Catalyst System. Mandal, B. M., Jewrajka, S. K., Chatterjee, D. P., Chatterjee, U., Das P. and Guha, S. 2002, Indian Patent Application No. 678/cal/02 filed on 5. 12. 2002 (published).

  • preparation of ion exchange membrane for water purification, water desalination, ultrapure water production, waste water management
  • polymer synthesis by controlled radical polymerization like ATRP, RAFT. Organic coating, Ion exchange membrane for water purification, recovery of high value chemicals etc, polymer nanocomposite.
  • Others