01920nas a2200229   4500008004100000022001400041245008800055210006900143260007300212300001200285490000800297520112800305653003001433653000901463653000901472653002501481653000801506100002501514700002001539700001901559856011201578       2005                        eng d  a0169-433200aDeposition of PTFE thin films by RF plasma sputtering on < 100 > silicon substrates0 aDeposition of PTFE thin films by RF plasma sputtering on 100 sil  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a202-2070 v2453 a<p>Polymers have been studied extensively due to the wonderful array of properties presented by them. Polymer materials can be coated/deposited by various techniques like sputtering (magnetron, ion beam, RF or dc), plasma polymerization, etc. and can be used in coatings, paint industries, etc. The present study deals with the RF sputter deposition of poly(tetrafluoro ethylene) (PTFE), commonly known as Teflon. Depositions were carried out on mirror polished silicon (1 0 0) substrates at different powers in the range of 100-200 W. The deposition time was kept constant at 60 min. The sputtered film shows lower contact angle of 50&amp;DEG; with water and 44&amp;DEG; with diiodomethane, a lower interfacial tension value of 0.76 dyne/cm, indicating hydrophilicity and good adhesion of the film with the substrate. FHR indicates presence of C-F, C-F-2 bonding groups in the deposited film. Further, XPS study shows presence of CF3 (292.2 eV), CF2 (290.8 eV), C-F (288.0 eV) and C-CF (286.4 eV) moieties indicating deposition of PTFE films at higher power levels of plasma. © 2004 Elsevier B.V. All rights reserved.</p>10aContact angle measurement10aFTIR10aPTFE10aRF plasma sputtering10aXPS1 aBodas, Dhananjay, S.1 aMandale, A., B.1 aGangal, S., A.  uhttps://library.ncl.res.in/content/deposition-ptfe-thin-films-rf-plasma-sputtering-100-silicon-substrates-001771nas a2200253   4500008004100000022001400041245009900055210006900154260007300223300001400296490000700310520087300317653003001190653000901220653001301229653002501242653000801267100002201275700002501297700002001322700001901342700002601361856013001387       2006                        eng d  a0167-577X00aElectron beam induced surface cross-linking of functional monomers coated on silicon substrate0 aElectron beam induced surface crosslinking of functional monomer  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a1360-13650 v603 a<p>A 3: 1 composition of functional monomer: multifunctional acrylate was spin coated and later cross-linked under the influence of keV electron irradiation on the surface of silicon to generate a surface-anchored cross-linked network bearing functional moieties. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) as well as wetting angle measurements were used for the analysis of functional monomer cross-linked surfaces. Results of the surface reconstruction of surfaces and electron irradiated on coated silicon wafers reveal that long-term hydrophilic surfaces can be achieved. Thus, the surface architecture can be favorably manipulated by using this remarkable technique with a Suitable combination of functional monomers and cross-linkers. (c) 2005 Elsevier B.V. All rights reserved.</p>10aelectron beam irradiation10aFTIR10aPolymers10asurface modification10aXPS1 aMahapatra, S., K.1 aBodas, Dhananjay, S.1 aMandale, A., B.1 aGangal, S., A.1 aBhoraskar, Vasant, N.  uhttps://library.ncl.res.in/content/electron-beam-induced-surface-cross-linking-functional-monomers-coated-silicon-substrate-002409nas a2200289   4500008004100000022001400041245009300055210006900148260009200217300001200309490000800321520145200329653001801781653001501799653000801814653000901822653001401831653000801845653001601853653000801869100003001877700002001907700002201927700002001949700002601969856012401995       2006                        eng d  a1042-015000aIrradiation effects of 12 eV oxygen ions on polyimide and fluorinated ethylene propylene0 aIrradiation effects of 12 eV oxygen ions on polyimide and fluori  a4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcAUG  a495-5040 v1613 a<p>Polyimide (PI) and Fluorinated Ethylene Propylene (FEP) samples (15mm x 15mm x 50 mu m ) were exposed to atomic oxygen ions of average energy similar to 12 eV and flux similar to 5x10(13) ions cm(-2) s(-1) , produced in the Electron Cyclotron Resonance (ECR) plasma. The energy and the flux of the oxygen ions at different positions in the plasma were measured by a retarding field analyzer. The fluence of the oxygen ions was varied from sample to sample in the range of similar to 5x10(16) to 2x10(17) ions cm(-2) by changing the irradiation period. The pre- and the post-irradiated samples were characterized by the weight loss, Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), and Fourier Transform Infrared (FTIR) techniques. The weight of the PI and FEP samples decreased with increasing the ion fluence. However, the erosion yield for the PI is found to be higher, by almost a factor five, when compared with that of FEP. On the surface region of irradiated samples, the concentrations of the carbon, fluorine, and oxygen and their corresponding chemical bonds have changed appreciably. Moreover, blisters and nanoglobules were also observed even at a fluence of similar to 10(17) ions cm(-2) . This oxygen ion fluence is almost two orders of magnitude lower than that of the 5 eV atomic oxygen, which a satellite encounters in the space, at the low Earth orbit, during its mission period of about 7 years.</p>10aatomic oxygen10aECR plasma10aFEP10aFTIR10aPolyimide10aSEM10aweight loss10aXPS1 aMajeed, Riyadh, M A Abdul1 aPurohit, V., S.1 aBhoraskar, S., V.1 aMandale, A., B.1 aBhoraskar, Vasant, N.  uhttps://library.ncl.res.in/content/irradiation-effects-12-ev-oxygen-ions-polyimide-and-fluorinated-ethylene-propylene-002028nas a2200253   4500008004100000022001400041245010000055210006900155260006800224300001200292490000800304520116300312653001301475653002401488653000901512653001901521653001401540100002401554700001801578700002001596700001801616700002001634856012001654       2007                        eng d  a0021-899500aUse of poly(o-toluidine)/ZrO2 nanocomposite coatings for the corrosion protection of mild steel0 aUse of polyotoluidineZrO2 nanocomposite coatings for the corrosi  a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcOCT  a220-2290 v1063 a<p>This study explored the possibility of using poly(o-toluidine) (POT)/ZrO2 nanocomposite coatings for the corrosion protection of mild steel in a chloride environment. POT/ZrO2 nanocomposite coatings were synthesized on steel substrates through an electrochemical route. These coatings were characterized with cyclic voltammetry, ultraviolet-visible absorption spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. The performance of POT/ZrO2 nanocomposites as protective coatings against the corrosion of mild steel in aqueous 3 wt % NaCl was evaluated with the potentiodynamic polarization technique and electrochemical impedance spectroscopy. The results of this study demonstrate that POT/ZrO2 nanocomposite coatings provide better protection for mild steel against corrosion than pure POT coatings. The corrosion potential was about 0.312 V versus a saturated calomel electrode, more positive in aqueous 3 wt % NaCl for the nanocomposite-coated steel than the uncoated steel, and the corrosion rate of steel was reduced by a factor of almost 51. (c) 2007 Wiley Periodicals, Inc.</p>10aCoatings10aconjugated polymers10aFTIR10aNanocomposites10asynthesis1 aChaudhari, Sudeshna1 aPatil, P., P.1 aMandale, A., B.1 aPatil, K., R.1 aSainkar, S., R.  uhttps://library.ncl.res.in/content/use-polyo-toluidinezro2-nanocomposite-coatings-corrosion-protection-mild-steel-0