Globally energy demand is increasing day by day due to increase in population, urbanization and i... more Globally energy demand is increasing day by day due to increase in population, urbanization and industrialization. The solar energy among other have the abundant capacity to support the increasing energy demand without intensifying the climate change impacts to the globe and its components. The isolated solar street lights installed in the outer circle of silver jubilee campus was a part of green incentive taken by the Pondicherry University to reduce the climate change issue during the establishment of the silver jubilee campus in 2010. With the time, the solar street lights faced new challenges that have significantly reduced the efficiency due to shading effects with the growing trees and some other social and security issues. The scope of work involves the study of the installed solar street lights and exploration of the opportunity for its better utilization by conducting of technical, economical and operational feasibility of uninstalling those panels utilized for street light...
The thermal and dynamic mechanical behaviour of calcium containing co-polyurethanes namely calciu... more The thermal and dynamic mechanical behaviour of calcium containing co-polyurethanes namely calcium containing poly(urethane-ether)s, poly(urethane-ester)s and poly(urethane-ether-ester )s along with their control co-polyurethanes were studied. The data obtained revealed ...
Polymer latices with surface functional groups have received considerable attention because of th... more Polymer latices with surface functional groups have received considerable attention because of their extensive applications, including synthetic rubbers, paints, adhesives, binders, additives in paper and textiles, leather treatment, impact modifiers, solid-phase flocculants, ...
A new class of SERRS-active macromolecule designed to protect silver nanoparticle surfaces agains... more A new class of SERRS-active macromolecule designed to protect silver nanoparticle surfaces against salt corrosion whilst retaining colloidal stability of the particles is reported.
J. MACROMOL. SCI.PURE APPL. CHEM., A38(1), 6778 (2001) SYNTHESIS AND CHARACTERIZATION OF HOMO-A... more J. MACROMOL. SCI.PURE APPL. CHEM., A38(1), 6778 (2001) SYNTHESIS AND CHARACTERIZATION OF HOMO-AND COPOLYMER OF 2-(N-PHTHALIMIDO)ETHYL METHACRYLATE AND STYRENE U. Senthilkumar, R. Balaji, R. Arun Prasath, and S. Nanjundan ∗ ...
ABSTRACT Zinc salt of mono (hydroxypentyl) phthalate [Zn [HPP] 2] was synthesized by reacting 1, ... more ABSTRACT Zinc salt of mono (hydroxypentyl) phthalate [Zn [HPP] 2] was synthesized by reacting 1, 5-pentane diol, phthalic anhydride and zinc acetate. Zinc containing polyurethanes having ionic linkages in the main chain were synthesized by the ...
SYNTHESIS AND CHARACTERIZATION OF POLYURETHANES AND POLYURETHANE-UREAS BASED ON ZINC SALT OF MONO... more SYNTHESIS AND CHARACTERIZATION OF POLYURETHANES AND POLYURETHANE-UREAS BASED ON ZINC SALT OF MONO(HYDROXYBUTYL)PHTHALATE R. Arun Prasath, R. Jayakumar, and S. Nanjundan* ... [12] R. Arun Prasath and S. Nanjundan, Journ. Mac. ...
A new type of homopolymers, PMAOE, bearing acid-cleavable cationic side-chains is synthesized and... more A new type of homopolymers, PMAOE, bearing acid-cleavable cationic side-chains is synthesized and characterized. PMAOE is obtained via free radical polymerization, and they could efficiently bind and condense plasmid DNA at neutral pH. The strength of DNA binding is dependent on the length of PMAOE chains. NMR analysis reveals that hydrolysis of the ortho ester group of PMAOE follows an exocyclic mechanism and the rate of hydrolysis is much accelerated at mildly acidic pH, leading to accelerated disruption of polyplexes and release of DNA in mildly acidic environment. PMAOE is not toxic to cultured NIH 3T3 and COS-7 cells measured by MTT. This study demonstrates a unique mechanism of achieving pH-modulated binding and release of DNA from polymers with potential applications for gene delivery.
Globally energy demand is increasing day by day due to increase in population, urbanization and i... more Globally energy demand is increasing day by day due to increase in population, urbanization and industrialization. The solar energy among other have the abundant capacity to support the increasing energy demand without intensifying the climate change impacts to the globe and its components. The isolated solar street lights installed in the outer circle of silver jubilee campus was a part of green incentive taken by the Pondicherry University to reduce the climate change issue during the establishment of the silver jubilee campus in 2010. With the time, the solar street lights faced new challenges that have significantly reduced the efficiency due to shading effects with the growing trees and some other social and security issues. The scope of work involves the study of the installed solar street lights and exploration of the opportunity for its better utilization by conducting of technical, economical and operational feasibility of uninstalling those panels utilized for street light...
The thermal and dynamic mechanical behaviour of calcium containing co-polyurethanes namely calciu... more The thermal and dynamic mechanical behaviour of calcium containing co-polyurethanes namely calcium containing poly(urethane-ether)s, poly(urethane-ester)s and poly(urethane-ether-ester )s along with their control co-polyurethanes were studied. The data obtained revealed ...
Polymer latices with surface functional groups have received considerable attention because of th... more Polymer latices with surface functional groups have received considerable attention because of their extensive applications, including synthetic rubbers, paints, adhesives, binders, additives in paper and textiles, leather treatment, impact modifiers, solid-phase flocculants, ...
A new class of SERRS-active macromolecule designed to protect silver nanoparticle surfaces agains... more A new class of SERRS-active macromolecule designed to protect silver nanoparticle surfaces against salt corrosion whilst retaining colloidal stability of the particles is reported.
J. MACROMOL. SCI.PURE APPL. CHEM., A38(1), 6778 (2001) SYNTHESIS AND CHARACTERIZATION OF HOMO-A... more J. MACROMOL. SCI.PURE APPL. CHEM., A38(1), 6778 (2001) SYNTHESIS AND CHARACTERIZATION OF HOMO-AND COPOLYMER OF 2-(N-PHTHALIMIDO)ETHYL METHACRYLATE AND STYRENE U. Senthilkumar, R. Balaji, R. Arun Prasath, and S. Nanjundan ∗ ...
ABSTRACT Zinc salt of mono (hydroxypentyl) phthalate [Zn [HPP] 2] was synthesized by reacting 1, ... more ABSTRACT Zinc salt of mono (hydroxypentyl) phthalate [Zn [HPP] 2] was synthesized by reacting 1, 5-pentane diol, phthalic anhydride and zinc acetate. Zinc containing polyurethanes having ionic linkages in the main chain were synthesized by the ...
SYNTHESIS AND CHARACTERIZATION OF POLYURETHANES AND POLYURETHANE-UREAS BASED ON ZINC SALT OF MONO... more SYNTHESIS AND CHARACTERIZATION OF POLYURETHANES AND POLYURETHANE-UREAS BASED ON ZINC SALT OF MONO(HYDROXYBUTYL)PHTHALATE R. Arun Prasath, R. Jayakumar, and S. Nanjundan* ... [12] R. Arun Prasath and S. Nanjundan, Journ. Mac. ...
A new type of homopolymers, PMAOE, bearing acid-cleavable cationic side-chains is synthesized and... more A new type of homopolymers, PMAOE, bearing acid-cleavable cationic side-chains is synthesized and characterized. PMAOE is obtained via free radical polymerization, and they could efficiently bind and condense plasmid DNA at neutral pH. The strength of DNA binding is dependent on the length of PMAOE chains. NMR analysis reveals that hydrolysis of the ortho ester group of PMAOE follows an exocyclic mechanism and the rate of hydrolysis is much accelerated at mildly acidic pH, leading to accelerated disruption of polyplexes and release of DNA in mildly acidic environment. PMAOE is not toxic to cultured NIH 3T3 and COS-7 cells measured by MTT. This study demonstrates a unique mechanism of achieving pH-modulated binding and release of DNA from polymers with potential applications for gene delivery.
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