@article { ISI:000232405500048, title = {Synthesis and intramolecular nitrile oxide cycloaddition of 3,5 {\textquoteleft}-ether-linked pseudooligosaccharide derivatives: an approach to chiral macrooxacycles}, journal = {Journal of Organic Chemistry}, volume = {70}, number = {21}, year = {2005}, month = {OCT}, pages = {8579-8582}, publisher = {AMER CHEMICAL SOC}, type = {Article}, address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA}, abstract = {

[GRAPHIC] 3,5{\textquoteright}-Ether-linked pseudooligopentose derivatives were synthesized for the first time from readily available carbohydrate precursors. The 1,2-isopropylidene-protected ether-linked oligopentoses are potentially important as precursors of novel RNA analogues. Intramolecular cycloaddition of the nitrile oxides prepared from these derivatives led to the diastereoselective formation of chiral isoxazolines fused to 10-16-membered oxacycles. The stereochemistry of some of these isoxazolines was established by X-ray diffraction and NOESY analysis.

}, issn = {0022-3263}, doi = {10.1021/jo050689w}, author = {Sengupta, J. and Mukhopadhyay, R. and Bhattacharjya, A. and Bhadbhade, Mohan M. and Bhosekar, Gaurav V.} } @article { ISI:000236438200026, title = {Cu(I)-catalyzed cycloaddition of constrained azido-alkynes: access to 12- to 17-membered monomeric triazolophanes incorporating furanoside rings}, journal = {Tetrahedron Letters}, volume = {47}, number = {16}, year = {2006}, month = {APR}, pages = {2775-2778}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A strained monomeric 12-membered triazolophane was formed by the Cu(I)-catalyzed intramolecular cycloaddition of an azide to an alkyne having a constrained tether incorporating ail aromatic ring and a furanoside ring. Similar cycloadditions of azido-alkynes having ester, furanoside and peptidic tethers led to the formation of monomeric triazolophanes of higher ring sizes. (c) 2006 Elsevier Ltd. All rights reserved.

}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2006.02.068}, author = {Ray, A. and Manoj, Kochunnoonny and Bhadbhade, Mohan M. and Mukhopadhyay, R. and Bhattacharjya, A.} } @proceedings { ISI:000306973500619, title = {Noble metal ions incorporated in lattice points of perovskites - water gas shift activity of BaCe1-xPtxO3-d}, volume = {1447}, year = {2012}, note = {56th DAE-Solid State Physics Symposium (SSPS), SRM Univ, Kattankulathur, INDIA, DEC 19-23, 2011}, month = {JUN}, pages = {1277-1278}, publisher = {Govt India, Dept Atom Energy (DAE), Board Res Nucl Sci (BRNS)}, address = {2 Huntington Quadrangle, Ste 1no1, Melville, NY 11747-4501 USA}, abstract = {

Recently precious metals supported on oxides were reported to be very promising catalysts for the lower-temperature WGS reaction. Here we report the synthesis of platinum doped barium cerate and its use as catalysts for WGS reaction. It has been found that maximum CO conversion was obtained at 350 degrees C which enhanced after the first cycle. XPS analysis shows that after the first cycle more ionic Platinum species are present on the surface of the catalyst. Neutron diffraction at room temperature shows that the oxygen vacancies are in the O2 position and increases with increasing Pt substitution.

}, keywords = {BaCeO3, Neutron diffraction, Platinum catalysis, WGS reaction}, isbn = {978-0-7354-1044-2}, issn = {0094-243X}, doi = {10.1063/1.4710478}, author = {Jijil, Chamundi P. and Rajarajan, A. K. and Devi, R. Nandini}, editor = {Mittal, R. and Chauhan, A. K. and Mukhopadhyay, R.} } @article { ISI:000312452700005, title = {Structure-property relationship of different types of polyester industrial yarns}, journal = {Journal of the Textile Institute}, volume = {104}, number = {1}, year = {2013}, month = {JAN}, pages = {35-45}, publisher = {TAYLOR \& FRANCIS LTD}, address = {4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND}, abstract = {

Four major types of polyester industrial yarns (1000 Denier) which are used commercially were studied for their key structural parameters. An attempt has been made to establish a relationship between morphology and properties of these yarns. High tenacity (HT) polyester yarn has the highest birefringence, amorphous orientation, and long period but is relatively less crystalline. High shrinkage characteristic of HT polyester yarn can be accounted for its higher amorphous orientation. High modulus low shrinkage (HMLS) polyester yarn has higher crystallinity and crystal size compared to HT yarn. Fraction of tie molecules of these yarns has been calculated and found that low shrinkage (LS) and super low shrinkage (SLS) yarns have lesser tie molecules. These LS and SLS yarns are tailor-made to achieve lower shrinkage and at the same time maintaining a good level of tenacity. This is achieved with lower amorphous orientation in the final drawn yarn structure. Amorphous orientation was found to have stronger influence than any other structural parameter on the key yarn properties like modulus, tenacity, elongation, and shrinkage.

}, keywords = {modulus, orientation, polyester, shrinkage, structure}, issn = {0040-5000}, doi = {10.1080/00405000.2012.693277}, author = {Samui, Barun Kumar and Prakasan, Manikanda Priya and Ramesh, C. and Chakrabarty, Debabrata and Mukhopadhyay, R.} } @article { ISI:000380167200011, title = {Studies on the static and dynamic properties of different types of polyester industrial yarns}, journal = {Journal of the Textile Institute}, volume = {107}, number = {9}, year = {2016}, month = {OCT}, pages = {1175-1184}, publisher = {TAYLOR \& FRANCIS LTD}, address = {2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND}, abstract = {

Four major types of polyester industrial yarns, viz. high tenacity (HT), high modulus low shrinkage (HMLS), low shrinkage (LS) and super low shrinkage (SLS) polyester yarns, were studied for their static and dynamic properties. An attempt has been made to establish a linkage between static and dynamic properties of these yarns with its structure and with its end applications. HMLS and HT polyester yarns have lower tan delta and work loss, which are the desired characteristics required for its end applications which include tire and conveyer belt. Higher overall orientation and higher fraction of tie molecules helped to achieve these properties in HT and HMLS polyester yarns. LS and SLS polyester yarns are mostly used for static applications. Low thermal shrinkage is the key requirement for the downstream processes of these yarns. Lower amorphous orientation in these two yarns is primarily responsible for achieving very low thermal shrinkage. A good co-relation has been established between the peak temperature of work loss (in slow speed hysteresis test) and the peak temperature of tan delta (in high-speed dynamic test).

}, keywords = {creep, modulus, polyester, shrinkage, tan delta, work loss}, issn = {0040-5000}, doi = {10.1080/00405000.2015.1097087}, author = {Samui, Barun Kumar and Dasgupta, Saikat and Mukhopadhyay, R. and Ramesh, C. and Chakrabarty, Debabrata} }