02446nas a2200325 4500008004100000022001400041245015900055210006900214260005700283300001400340490000800354520126400362653003101626653002801657653001301685653001501698653001601713653001801729653002701747653001501774100002801789700002101817700002701838700002401865700002401889700002601913700002601939700002501965856013001990 2014 eng d a0303-402X00aStudies on morphology of polyaniline films formed at liquid-liquid and solid-liquid interfaces at 25 and 5 A degrees C, respectively, and effect of doping0 aStudies on morphology of polyaniline films formed at liquidliqui a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAY a1079-10890 v2923 a

It is well accepted that the morphology of the nanomaterials has great effect on the properties and hence their applications. Therefore, morphology of materials has become a focus of research in the scientific world. The present study shows that interfacial polymerization and subsequent self-assembly provides a control over the morphology, nanorod/nanosheet, of polyaniline (PANI) films synthesized by liquid-liquid interface reaction technique and solid-liquid interface reaction technique. The synthesized PANI films and its particulate structure are characterized by using various spectroscopic techniques such as UV-visible, ATR-IR, Raman and XPS. The study confirmed the formation, the structure, the size and shape of particles and morphology of PANI by using analytical techniques namely, SAED, SEM and TEM. An important observation is that doping with HCl significantly improves the nanorod formation at the interface. The doped PANI electrode exhibits a higher area with rectangular shape in CV cycle and better cycle stability when compared with the performance of undoped PANI films. We believe that the results of these studies can give valuable leads to manoeuvre formation of PANI films with desired morphology for various applications.

10ainterfacial polymerization10aLiquid-liquid interface10aNanorods10ananosheets10apolyaniline10aSelf-assembly10aSolid-liquid interface10aThin films1 aWaghmode, Babasaheb, J.1 aPatil, Sagar, H.1 aJahagirdar, Mandar, M.1 aPatil, Virendra, S.1 aWaichal, Rupali, P.1 aMalkhede, Dipalee, D.1 aSathaye, Shivaram, D.1 aPatil, Kashinath, R. uhttps://library.ncl.res.in/content/studies-morphology-polyaniline-films-formed-liquid-liquid-and-solid-liquid-interfaces-25-002544nas a2200289 4500008004100000022001400041245014300055210006900198260007100267300001200338490000600350520143900356653002201795653003001817653003001847653002301877653003101900653003101931100002501962700002001987700002802007700001502035700002002050700002902070700002402099856013102123 2016 eng d a1944-824400aPt- and TCO-free flexible cathode for DSSC from highly conducting and flexible PEDOT paper prepared via in situ interfacial polymerization0 aPt and TCOfree flexible cathode for DSSC from highly conducting  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN a553-5620 v83 a

Here, we report the preparation of a flexible, free-standing, Pt- and TCO-free counter electrode in dye-sensitized solar cell (DSSC)-derived from polyethylenedioxythiophene (PEDOT)-impregnated cellulose paper. The synthetic strategy of making the thin flexible PEDOT paper is simple and scalable, which can be achieved via in situ polymerization all through a roll coating technique. The very low sheet resistance (4 Omega/square) obtained from a film of 40 mu m thick PEDOT paper (PEDOT-p-5) is found to be superior to the conventional fluorine-doped tin oxide (FTO) substrate. The high conductivity (357 S/cm) displayed by PEDOT-p-5 is observed to be stable under ambient conditions as well as flexible and bending conditions. With all of these features in place, we could develop an efficient Pt- and TCO-free flexible counter electrode from PEDOT-p-5 for DSSC applications. The catalytic activity toward the tri-iodide reduction of the flexible electrode is analyzed by adopting various electrochemical methodologies. PEDOT-p-5 is found to display higher exchange current density (7.12 mA/cm(2)) and low charge transfer resistance (4.6 Omega) compared to the benchmark Pt-coated FTO glass (2.40 mA/cm(2) and 9.4 Omega, respectively). Further, a DSSC fabricated using PEDOT-p-5 as the counter electrode displays a comparable efficiency of 6.1% relative to 6.9% delivered by a system based on Pt/FTO as the counter electrode.

10acounter electrode10adye-sensitized solar cell10aflexible and thin devices10aimpedance analysis10ainterfacial polymerization10apolyethylenedioxythiophene1 aAnothumakkool, Bihag1 aAgrawal, Ishita1 aBhange, Siddheshwar, N.1 aSoni, Roby1 aGame, Onkar, S.1 aOgale, Satishchandra, B.1 aKurungot, Sreekumar uhttps://library.ncl.res.in/content/pt-and-tco-free-flexible-cathode-dssc-highly-conducting-and-flexible-pedot-paper-prepared-002426nas a2200241 4500008004100000022001400041245017000055210006900225260000800294300001600302490000700318520150000325653003101825653001701856653003101873653003501904653002701939100002601966700002201992700001702014700002202031856013102053 2024 eng d a1944-824400aScalable, interfacially synthesized, covalent-organic framework (COF)-based thin-film composite (TFC) hollow fiber membranes for organic solvent nanofiltration (OSN)0 aScalable interfacially synthesized covalentorganic framework COF cAPR a19463-194710 v163 a

Covalent organic frameworks have great potential for energy-efficient molecular sieving-based separation. However, it remains challenging to implement COFs as an alternative membrane material due to the lack of a scalable and cost-effective fabrication mechanism. This work depicts a new method for fabricating a scalable in situ COF hollow fiber (HF) membrane by an interfacial polymerization (IP) approach at room temperature. The 2D COF film was constructed on a polyacrylonitrile HF substrate using aldehyde (1,3,5-trimethylphloroglucinol, Tp) and amine (4,4 `-azodianiline (Azo) and 4,4 `,4 `'-(1,3,5-triazine- 2,4,6-triyl) trianiline (Tta)) as precursors. The COF membrane on the PAN substrate showed 99% rejection of Direct red-80 with remarkable solvent permeance. The rejection analysis revealed that the structural aspects of the solute molecule play a major role in rejection rather than the molecular weight. We further optimized the precursor concentrations to improve the permeation performance of the resulting membrane. The durability study reveals excellent stability of the membrane toward organic solvents. This study also demonstrated the easy scalability of the membrane fabrication approach. The approach was further extrapolated to fabricate a cation-based COF membrane. These charged membranes exhibited an enhanced rejection performance. Finally, this approach can facilitate industrially challenging molecular sieving applications using COF-based membranes.

10acovalent-organic framework10ahollow fiber10ainterfacial polymerization10aorganic solvent nanofiltration10aselective COF membrane1 aKunjattu, Shebeeb, H.1 aThorat, Nitin, M.1 aGawas, Saroj1 aKharul, Ulhas, K. uhttps://library.ncl.res.in/content/scalable-interfacially-synthesized-covalent-organic-framework-cof-based-thin-film-composite02214nas a2200229 4500008004100000022001400041245010200055210006900157260000800226300001100234490000800245520141200253653003101665653002301696653001701719653002201736100002001758700002501778700002201803700003101825856012801856 2025 eng d a1381-514800aSustained release polyurethane microcapsules by interfacial polycondensation using aromatic diols0 aSustained release polyurethane microcapsules by interfacial poly cNOV a1064600 v2163 a

Polyurea-urethane (PUU) microcapsules prepared via interfacial polymerization have gained significant interest due to their tunable size and membrane thickness, high loading efficiency, and scalability. Although several aromatic and aliphatic diols and polyols have been used to produce PU foams and films, the use of aromatic diols to synthesize PUU MICs via interfacial polymerization is an unexplored domain due to the restricted solubility of aromatic diols in water. This report highlights the successful preparation of PUU microcapsules using an aromatic diol (benzene-1,4-dimethanol, BDM) to encapsulate dimethyl phthalate (DMP), a model insect repellent. The developed PUU microcapsules exhibited a high % encapsulation efficiency of 92 % and a size range of 1-20 mu m. Differential scanning calorimetry (DSC) thermograms revealed a significantly high glass transition temperature (Tg) of 143 degrees C as compared to 108 degrees C in the case of PUU MICs with aliphatic diols. Release studies confirm enhanced barrier properties for aromatic diol-based MICs as compared to aliphatic ethylene glycol-based PUU MICs, and interpretation of the release profile using the Weibull Model reveals that Fickian diffusion is the dominant mechanism in the release of DMP. These microcapsules can be used in high-performance applications such as composites, coatings, electronics, and construction.

10ainterfacial polymerization10aMicroencapsulation10apolyurethane10asustained release1 aYadav, Prashant1 aRavikumar, Aniruddha1 aAmbade, Ashootosh1 aShanmuganathan, Kadhiravan uhttps://library.ncl.res.in/content/sustained-release-polyurethane-microcapsules-interfacial-polycondensation-using-aromatic