Tuesday, 26 June 2007 - 12:00 PM
Clayton 119
213

Preparation of Melamine-Formaldehyde-Polyvinylpyrrolidone (MFP) novel resins, their structural with IR-NMR and Friccohesive characterizations with Survismeter, and their Hydrodynamics

Man Singh and Vinod Kumar. Chemistry research lab., Deshabndhu college, university of delhi, new delhi, india, new delhi, India

Cutting edge nanotechnological based material sciences have revolutionized the focus of research in all forefronts of physicochemical and medicochemical and electronic industries. Frontier of science and technology are tens for evolving ecofriendly, green chemistry and micro scale the devices for applications of them and a competition is being generated for cutting edge research in materials. In continuation of such efforts novel polymer resins of melamine-formaldehyde-polyvinylpyrrolidone (MFP) in 0.5:16:1 (R1), 1:16:1 (R2) and 0.5:10:1(R3) ratios have been prepared with condensation polymerization. Their average viscosity molecular weights (`Mv) determined with Mark-Houwink and Friccohesity, a state of frictional-cohesive-adhesive forces with Man Singh equations, respectively. The viscous flow time (t) and drop count (n) data for Man Singh equation were obtained with Survismeter respectively. Structural determinations were made with IR and H1 NMR where specific proton singlet at ä 4.5 ppm, duplet at ä 3.13-3.17 and a quartet at ä 1.5-2.2 ppm infer the positions of protons of methylen (-CH2 -) bridging groups, pyrrolidone and polyvinyl constituents of the resins. The 3389.25, 1290.38 and 1655.28 cm-1 stretching frequencies of –O----H-CH-, -C-O and –C=N- groups respectively infer its preparation. The`Mv of R1, R2 and R3 resins are 11,995, 12,250 and 11,709 g mol-1, structural and physicochemical behavior is studied with survismeter to for adhesive properties. The viscosities and surface tension will be elaborated at deliverance of the lecture.


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