Self-Assembled Rigid-Rod Ionophores

1999 ◽  
Vol 121 (17) ◽  
pp. 4294-4295 ◽  
Author(s):  
Naomi Sakai ◽  
Nirmalya Majumdar ◽  
Stefan Matile
Keyword(s):  
Rigid Rod ◽  
Self Assembled

Self-assembled multimicellar vesicles via complexation of a rigid conjugated polymer with an amphiphilic block copolymer

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54752-54759 ◽  
Author(s):  
Anbazhagan Palanisamy ◽  
Qipeng Guo
Keyword(s):  
Block Copolymer ◽  
Conjugated Polymer ◽  
Amphiphilic Block Copolymer ◽  
Flexible Coil ◽  
Rigid Rod ◽  
Assembled Complexes ◽  
Self Assembled

We report here a facile method for fabrication of multimicellar vesicles from self-assembled complexes of a flexible coil-like block copolymer and a rigid rod conjugated homopolymer.

Comparative electrochemical and impedance studies of self-assembled rigid-rod molecular wires and alkanethiols on gold substrates

2010 ◽  
Vol 12 (44) ◽  
pp. 14804 ◽  
Author(s):  
Francisco A. Aguiar ◽  
Rui Campos ◽  
Changsheng Wang ◽  
Rukkiat Jitchati ◽  
Andrei S. Batsanov ◽  
...  
Keyword(s):  
Molecular Wires ◽  
Gold Substrates ◽  
Rigid Rod ◽  
Self Assembled

Characterization of Self-Assembled Monolayers of Porphyrins Bearing Multiple Thiol-Derivatized Rigid-Rod Tethers

2004 ◽  
Vol 126 (38) ◽  
pp. 11944-11953 ◽  
Author(s):  
Amir A. Yasseri ◽  
Dennis Syomin ◽  
Vladimir L. Malinovskii ◽  
Robert S. Loewe ◽  
Jonathan S. Lindsey ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Rigid Rod ◽  
Self Assembled

Electrostatically Self-assembled Multilayers of Novel Symmetrical Rigid-Rod Polyanionic and Polycationic Polythiophenes on ITO/Glass and Gold Electrodes

2004 ◽  
Vol 16 (11) ◽  
pp. 2091-2100 ◽  
Author(s):  
Gianni Zotti ◽  
Sandro Zecchin ◽  
Gilberto Schiavon ◽  
Barbara Vercelli ◽  
Anna Berlin ◽  
...  
Keyword(s):  
Gold Electrodes ◽  
Ito Glass ◽  
Rigid Rod ◽  
Self Assembled

Computer Simulation of Chain Molecule-Inorganic Interphases: Chromatographic Stationary Phases and Rigid Rod Self-Assembled Monolayers

1993 ◽  
Vol 304 ◽  
Author(s):  
S. J. Klatte ◽  
Z. Zhang ◽  
T. L. Beck
Keyword(s):  
Driving Forces ◽  
Stationary Phases ◽  
Glassy State ◽  
Self Assembled Monolayers ◽  
Gradual Transition ◽  
Chromatographic Retention ◽  
Chain Molecule ◽  
Assembled Monolayers ◽  
Rigid Rod ◽  
Self Assembled

AbstractMolecular dynamics simulations of alkane chains chemically tethered to silica surfaces are presented. The system was modeled after the stationary phases of chromatographic columns. The interphase properties were computed as functions of chain length, surface bonding density, and temperature. At densities appropriate for chromatography, the chains undergo a gradual transition with increasing temperature from a glassy state to a liquid-like state. The simulations are consistent with extensive experimental data including neutron scattering, NMR, IR, and EPR methods. The implications for chromatographic retention are discussed. In a second series of studies, we explored driving forces for observed ordering on the solid surface in terms of the various components of the chain-chain and chain-surface forces. Interfacial z profiles are sensitive functions of each of the forces. Finally, we present preliminary Monte Carlo results on origins of tilt behavior in self assembled monolayers of rigid chain species on metal surfaces.

scholarly journals Giant tubular and toroidal vesicles from self-assembled triblock copolymer–polyaniline complexes in water

2015 ◽  
Vol 51 (55) ◽  
pp. 11100-11103 ◽  
Author(s):  
Anbazhagan Palanisamy ◽  
Qipeng Guo
Keyword(s):  
Triblock Copolymer ◽  
Flexible Coil ◽  
Rigid Rod ◽  
Assembled Complexes ◽  
Self Assembled

We report here a facile method for fabrication of giant tubular and toroidal vesicles from self-assembled complexes of a flexible coil-like triblock copolymer and a rigid rod conjugated homopolymer.

scholarly journals The nature of the ordered phase of the confined self-assembled rigid rod model

2012 ◽  
Vol 137 (7) ◽  
pp. 074901 ◽  
Author(s):  
N. G. Almarza ◽  
J. M. Tavares ◽  
M. M. Telo da Gama
Keyword(s):  
Rod Model ◽  
Rigid Rod ◽  
Self Assembled

Morphology of High-Performance Rigid-Rod Polymer Fibers and Molecular Composites

1989 ◽  
Vol 47 ◽  
pp. 338-339
Author(s):  
W.W. Adams ◽  
S. J. Krause
Keyword(s):  
Tensile Strength ◽  
High Performance ◽  
Liquid Crystalline ◽  
Molecular Level ◽  
Synergistic Effects ◽  
Tensile Modulus ◽  
Commercial Development ◽  
The Matrix ◽  
Molecular Composites ◽  
Rigid Rod

Rigid-rod polymers such as PBO, poly(paraphenylene benzobisoxazole), Figure 1a, are now in commercial development for use as high-performance fibers and for reinforcement at the molecular level in molecular composites. Spinning of liquid crystalline polyphosphoric acid solutions of PBO, followed by washing, drying, and tension heat treatment produces fibers which have the following properties: density of 1.59 g/cm3; tensile strength of 820 kpsi; tensile modulus of 52 Mpsi; compressive strength of 50 kpsi; they are electrically insulating; they do not absorb moisture; and they are insensitive to radiation, including ultraviolet. Since the chain modulus of PBO is estimated to be 730 GPa, the high stiffness also affords the opportunity to reinforce a flexible coil polymer at the molecular level, in analogy to a chopped fiber reinforced composite. The objectives of the molecular composite concept are to eliminate the thermal expansion coefficient mismatch between the fiber and the matrix, as occurs in conventional composites, to eliminate the interface between the fiber and the matrix, and, hopefully, to obtain synergistic effects from the exceptional stiffness of the rigid-rod molecule. These expectations have been confirmed in the case of blending rigid-rod PBZT, poly(paraphenylene benzobisthiazole), Figure 1b, with stiff-chain ABPBI, poly 2,5(6) benzimidazole, Fig. 1c A film with 30% PBZT/70% ABPBI had tensile strength 190 kpsi and tensile modulus of 13 Mpsi when solution spun from a 3% methane sulfonic acid solution into a film. The modulus, as predicted by rule of mixtures, for a film with this composition and with planar isotropic orientation, should be 16 Mpsi. The experimental value is 80% of the theoretical value indicating that the concept of a molecular composite is valid.

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