Browsing by Author "Nadkarni, V.S."

An efficient synthesis of alpha-(alkylidene)-5, 5-dimethyl-delta-lactones

Parsekar, S.B.; Amonkar, C.P.; Nadkarni, V.S.; Tilve, S.G. (Indian Journal of Chemistry Section B-Organic Chemistry Including Medicinal Chemistry. 48(9); 2009; 1333-1336.)

2-(-Alkylidene substituted)-5,5-dimethyl-delta-lactones have been synthesized in two steps. The stable phosphorane carboethoxy-methyledene (alpha-prenyl)-triphenylphosphorane is condensed with different carbonyl compounds ...

First report on preparation of poly (nitro-carbonate) thermoset polymers for nuclear track detection

Mascarenhas, A.A.A.; Mandrekar, V.K.; Kalsi, P.C.; Tilve, S.G.; Nadkarni, V.S. (Radiation Measurements. 44(1); 2009; 50-56.)

In an attempt to study the effect of various radiation sensitive groups in the polymer matrix and their relation to the sensitivity towards charged particles, we have designed two new monomers Allyl bis-(2-nitroxy-ethyl) ...

Iron doping in sodium para-nitrophenolate dihydrate crystal: A case study

Narvekar, K.U.; Nadkarni, V.S.; Tylczynski, Z.; Srinivasan, B.R. (Materials Today Communications. 19; 2019; 349-351.)

In this study we examine a case of iron doping in sodium para-nitrophenolate dihydrate single crystal recently reported by Dalal and Kumar (Mater. Lett. 165 (2016) 99-102). We show that, addition of ferric (Fe3+) ions into ...

Is 1-(4-fluorostyryl)-4-nitrostilbene a novel nonlinear optical crystal?

Srinivasan, B.R.; Nadkarni, V.S. (Optik. 125(19); 2014; 5558-5559.)

Many details including the reaction scheme of crystal synthesis in a recent paper reporting optical and mechanical properties of 1-(4-fluorostyryl)-4-nitrostilbene (FNS) single crystal, by Dinakaran and Kalainathan (Optik, ...

Modification of etching properties of a newly developed nuclear track detector called allyl bis-(2-nitroxy-ethyl) carbomate (ABNEC)-allyl diglycol carbonate (ADC) copolymer [ABNEC:ADC (1:9)] by gamma irradiation

Mhatre, A.; Chavan, V.; Kalsi, P.C.; Nadkarni, V.S. (Journal of Radioanalytical and Nuclear Chemistry. 286(1); 2010; 99-101.)

The gamma irradiation effects on the bulk etch rate, V(b) of an indigenously prepared new nuclear track detector which is a copolymer of allyl bis-(2-nitroxy-ethyl) carbomate (ABNEC) and allyl diglycol carbonate (ADC) ...

New polymers for solid state nuclear track detection

Mascarenhas, A.A.A.; Kolekar, R.; Kalsi, P.C.; Ramaswami, A.; Joshi, V.B.; Tilve, S.G.; Nadkarni, V.S. (Radiation Measurements. 41(1); 2006; 23-30.)

Two novel polymers have been prepared from a monomer N-allyloxycarbonyl diethanolamine-bis(allyl carbonate) i.e., NADAC by cast polymerization and were successfully used as solid state nuclear track detectors for alpha ...

Novel poly (disulfonyl diallyl carbonate) polymers for swift solid state nuclear track detection applications

Shetgaonkar, A.D.; Mandrekar, V.K.; Nadkarni, V.S.; Naik, D.G. (Radiation Measurements. 168; 2023; ArticleID_107002.)

This paper describes the design and development of two novel disulfone-carbonate polymeric materials for swift solid state nuclear track detection applications. A monomer 2,2'-(oxybis(ethylenesulfonyl))diallylcarbonate ...

Novel poly (sulfone-carbonate) polymers for rapid revelation of charged particle tracks by chemical etching process

Naik, D.G.; Nadkarni, V.S. (Radiation Physics and Chemistry. 160; 2019; 68-74.)

This paper describes the synthesis and performance of two novel poly (sulfone-carbonate) polymeric detectorsfor rapid revelation of charged particletracks by chemical etching. Both the novel detectors were found to have ...

A novel polycarbonate copolymer as organocatalyst for Aldol and Michael reaction

Bugde, S.T.; Majik, M.S.; Mandrekar, V.K.; Nadkarni, V.S.; Tilve, S.G. (Synthetic Communications. 43; 2013; 2536-2545.)

A new polymeric organocatalyst is prepared by free radical copolymerization of allyl diglycol carbonate (ADC) and Boc-protected allyl prolinate and evaluated as a chiral catalyst for aldol and Michael reaction.

Novel Polymeric Materials for Nuclear Track Detection

Mandrekar, V.K.

Novel polysulphonates and poly(sulphonate-co-carbonate) polymers for nuclear track detection

Mandrekar, V.K.; Tilve, S.G.; Nadkarni, V.S. (Radiation Physics and Chemistry. 77(9); 2008; 1027-1033.)

Preparation of homopolymer from diethylene glycol bis(allyl sulphonate) (DEAS) and its several copolymers with allyl diglycol carbonate (ADC) and their preliminary evaluation as nuclear track detector is described. The ...

Nuclear track detection using thermoset polycarbonates derived from pentaerythritol

Mandrekar, V.K.; Chourasiya, G.; Kalsi, P.C.; Tilve, S.G.; Nadkarni, V.S. (Nuclear Instruments and Methods In Physics Research Section B-Beam Interactions With Materials And Atoms. 268(5); 2010; 537-542.)

The paper describes the synthesis and performance of two polymers as nuclear track detectors, both having alpha sensitivity higher than that of the widely-used polymer CR-39. A homopolymer (PPETAC) from pentaerythritol ...

Poly (phosphate-co-carbonate) polymers for Solid State Nuclear Track Detection Application

Naik, D.G.; Nadkarni, V.S. (Radiation Physics and Chemistry. 156; 2018; 259-265.)

Polymers of triallyl phosphate (TAP) with allyl diglycol carbonate (ADC), pentaerythritol tetrakis allyl carbonate (PETAC) and N-allyloxycarbonyldiethanolaminebis (allyl carbonate) (NADAC) monomers have been prepared and ...

Poly(sulfone-carbonate-carborane) copolymers for rapid revelation of thermal neutron induced alpha tracks

Pawar, V.M.; Pal, R.; Bakshi, A.K.; Nadkarni, V.S. (Radiation Physics and Chemistry. 182; 2021; ArticleID_109357.)

The paper describes the preliminary studies regarding development of a new polymeric track detector known as poly (SDAC-co-ADC-co-APCC) for rapid detection of thermal neutrons induced alpha tracks. The polymeric detector ...

Poly(triallyl phosphate) and its copolymers with allyl diglycol carbonate as solid state nuclear track detectors

Naik, D.G.; Nadkarni, V.S. (Designed Monomers and Polymers. 19(7); 2016; 643-649.)

This paper describes the design and development of new polymers for solid state nuclear track detection. A monomer triallyl phosphate (TAP) has been synthesized and cast homo/ copolymerized with allyl diglycol carbonate ...

Polymeric Track Detectors for Neutron and Other Dosimetric Applications

Pawar, Vishal Madhukar

Preparation of thin films of cellulose acetate-nitrocellulose blend for solid state nuclear track detection using spin coating technique

Pawar, V.M.; Nadkarni, V.S. (Journal of Radioanalytical and Nuclear Chemistry. 323(3); 2020; 1329-1338.)

This paper describes preparation of composite thin films of 12 plus or minus 1 micrometer from cellulose acetate (CA) and cellulose acetate (CA) -cellulose nitrate (CN) blend on a polyester support for solid state nuclear ...

Purification and characterisation of a sulphur rich melanin from edible mushroom Termitomyces albuminosus Heim

DeSouza, R.A.; Kamat, N.M.; Nadkarni, V.S. (Mycology. 9(4); 2018; 296-306.)

Production, purification and characterisation of a black pigment from Termitomyces albuminosus as melanin is reported, for the first time, from shaken submerged culture condition using scanning electron microscopy (SEM), ...

Reinvestigation of growth of urea thiosemicarbazone monohydrate crystal

Srinivasan, B.R.; Raghavaiah, P.; Nadkarni, V.S. (Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 112; 2013; 84-89.)

The reaction of urea with thiosemicarbazide in 1:1 mole ratio in aqueous solution does not result in the formation of urea thiosemicarbazone monohydrate crystal, as reported by Hanumantharao, Kalainathan and Bhagavannarayana ...

Synthesis , Properties And Applications of Some Polycarbonate And Polyurethane Polymers

Shetgaonkar, Abhijit Digamber

Browsing by Author "Nadkarni, V.S."

Browsing by Author "Nadkarni, V.S."

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