Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Vikram Kuppa"'
Autor:
Gregory Beaucage, Jan Ilavsky, Alex McGlasson, Mindaugas Rackaitis, Vikram Kuppa, Michael Chauby, Kabir Rishi
Publikováno v:
Macromolecules. 53:2235-2248
The dispersion of nanoparticles in viscous polymers is dictated by kinetics, interaction potentials between particles, and interfacial compatibility between the matrix and dispersed phases. It was ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5004686e332c1858e7f2242aa258a41d
https://doi.org/10.1021/acs.macromol.9b02429
https://doi.org/10.1021/acs.macromol.9b02429
Autor:
Mindaugas Rackaitis, Vikram Kuppa, Alex McGlasson, Gregory Beaucage, Andrew Mulderig, Jan Ilavsky, Kabir Rishi, Vishak Narayanan
Publikováno v:
Macromolecules. 51:7893-7904
Aggregated polymer fillers, such as carbon black and silica, at concentrations above the percolation threshold form an emergent structure, the hierarchical filler network, in immiscible systems where dispersion is driven by accumulated strain. It is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95dda9093522eb10a52a8774d5fce118
https://doi.org/10.1021/acs.macromol.8b01510
https://doi.org/10.1021/acs.macromol.8b01510
Autor:
Vikram Kuppa, Abishek Venkatakrishnan
Publikováno v:
Current Opinion in Chemical Engineering. 19:170-177
The adsorption of polymers on smooth or atomistically flat substrates has been a topic of study for decades, and such systems are well-characterized. However, there is little knowledge of the complex interfaces created by adsorption on heterogeneous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e54f6f351b12291b367457ef4f02568
https://doi.org/10.1016/j.coche.2018.03.001
https://doi.org/10.1016/j.coche.2018.03.001
Autor:
Hanqiu Jiang, Mindaugas Rackaitis, Karsten Vogtt, Yan Jin, Jan Ilavsky, Jay Kim, Kabir Rishi, Vishak Narayanan, Gregory Beaucage, Vikram Kuppa, Andrew Mulderig
Publikováno v:
Polymer. 129:32-43
Dispersion in polymer nanocomposites is determined by the kinetics of mixing and chemical affinity. Compounds like reinforcing filler/elastomer blends display some similarity to colloidal solutions in that the filler particles are close to randomly d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b81194c898e2720ecc22631ba0e7fa4
https://doi.org/10.1016/j.polymer.2017.09.040
https://doi.org/10.1016/j.polymer.2017.09.040
Autor:
Kunlun Hong, Vikram Kuppa, Gregory Beaucage, Yan Jin, Jong Keum, James F. Browning, Fei Yu, Gregory S. Smith, Andrew Mulderig
Publikováno v:
Journal of Applied Crystallography. 50:1289-1298
This study investigates the structure of films spin-coated from blends of the semiconducting polymers poly(3-hexylthiophene-2,5-diyl) (P3HT) and poly{2,6-[4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene]-alt-4,7(2,1,3-benzothiadiazole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ec53488b4b3ccb8057399fa72e5113a
https://doi.org/10.1107/s1600576717010457
https://doi.org/10.1107/s1600576717010457
Publikováno v:
Journal of Aerosol Science. 109:28-37
The fractal structure of ceramic aggregates has been widely studied in terms of the mass fractal dimension and primary particle size. However, there has not yet been a quantitative description of the branched topology in these structures. In this wor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70918920d841df394c6077672164b3b8
https://doi.org/10.1016/j.jaerosci.2017.04.001
https://doi.org/10.1016/j.jaerosci.2017.04.001
Publikováno v:
Materials Letters. 156:161-164
Solar cells fabricated from a blend of the conjugated polymers poly(3-hexylthiophene) (P3HT) and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) demonstrate a substantial improvement in power conversion efficiency ( η ) upon the addition of pri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a9c5dd46c911af171829b55dc06c6b8
https://doi.org/10.1016/j.matlet.2015.04.103
https://doi.org/10.1016/j.matlet.2015.04.103
Autor:
Mindaugas Rackaitis, Andrew Mulderig, Gregory Beaucage, Kabir Rishi, Alex McGlasson, Vishak Narayanan, Jan Ilavsky, Michael Chauby, Vikram Kuppa
Publikováno v:
Polymer. 181:121765
Kinetically mixed reinforcing fillers are dispersed by accumulated strain. Processing conditions such as mixing geometry, intensity and the duration of mixing are key elements on controlling accumulated strain. A simple method to modify mechanical mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e546ea3aef567ec31052a0609ffb4430
https://doi.org/10.1016/j.polymer.2019.121765
https://doi.org/10.1016/j.polymer.2019.121765
Autor:
Fei Yu, Vikram Kuppa
Publikováno v:
Materials Letters. 99:72-75
We investigate organic bulk heterojunction (BHJ) devices that employ graphene nanosheets in the active layer. Solar cells based on P3HT:PCBM:graphene show device physics significantly different from traditional BHJs, and display a monotonic increase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8eb9ba7c086394852a438f878661bb
https://doi.org/10.1016/j.matlet.2013.02.069
https://doi.org/10.1016/j.matlet.2013.02.069
Autor:
S. Y. Reddy, Vikram Kuppa
Publikováno v:
Synthetic Metals. 162:2117-2124
The behavior of short oligothiophene molecules in the presence of a fullerene surface have been investigated via fully atomistic molecular dynamics studies. The simulations mimic the hybrid assemblies characteristic of bulk heterojunction structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff280eb908ec4149cf4f58c832b5e426
https://doi.org/10.1016/j.synthmet.2012.09.020
https://doi.org/10.1016/j.synthmet.2012.09.020