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Polypropylene/Layered Double Hydroxide Nanocomposites: Influence of LDH Intralayer Metal Constituents on the Properties of Polypropylene

Nagendra, Baku; Rosely, C. V. Sijla; Leuteritz, Andreas; Reuter, Uta; Gowd, E. Bhoje

Customer publications

Polypropylene/Layered Double Hydroxide Nanocomposites: Influence of LDH Intralayer Metal Constituents on the Properties of Polypropylene

Nagendra, Baku; Rosely, C. V. Sijla; Leuteritz, Andreas; Reuter, Uta; Gowd, E. Bhoje

Sonication-assisted delamination of layered double hydroxides (LDHs) resulted in smaller-sized LDH nanoparticles (∼50–200 nm). Such delaminated Co–Al LDH, Zn–Al LDH, and Co–Zn–Al LDH solutions were used for the preparation of highly dispersed isotactic polypropylene (iPP) nanocomposites. Transmission electron microscopy and wide-angle X-ray diffraction results revealed that the LDH nanoparticles…
Polyoxometalate/Polyethylene Glycol Interactions in Water: From Nanoassemblies in Water to Crystal Formation by Electrostatic Screening

Buchecker, Thomas; Le Goff, Xavier; Naskar, Bappaditya; Pfitzner, Arno; Diat, Olivier; Bauduin, Pierre

Customer publications

Polyoxometalate/Polyethylene Glycol Interactions in Water: From Nanoassemblies in Water to Crystal Formation by Electrostatic Screening

Buchecker, Thomas; Le Goff, Xavier; Naskar, Bappaditya; Pfitzner, Arno; Diat, Olivier; Bauduin, Pierre

In the last decade organic–inorganic hybrid materials have become essential in materials science as they combine properties of both building blocks. Nowadays the main routes for their synthesis involve electrostatic coupling, covalent grafting, and/or solvent effects. In this field, polyoxometalates (POMs) have emerged as interesting inorganic functional building blocks due…
Polymerization-Like Co-Assembly of Silver Nanoplates and Patchy Spheres

Luo, Binbin; Smith, John W.; Wu, Zixuan; Kim, Juyeong; Ou, Zihao; Chen, Qian

Customer publications

Polymerization-Like Co-Assembly of Silver Nanoplates and Patchy Spheres

Luo, Binbin; Smith, John W.; Wu, Zixuan; Kim, Juyeong; Ou, Zihao; Chen, Qian

Highly anisometric nanoparticles have distinctive mechanical, electrical, and thermal properties and are therefore appealing candidates for use as self-assembly building blocks. Here, we demonstrate that ultra-anisometric nanoplates, which have a nanoscale thickness but a micrometer-scale edge length, offer many material design capabilities. In particular, we show that these nanoplates…
Polyelectrolyte Capping As Straightforward Approach toward Manipulation of Diffusive Transport in MOF Films

Allegretto, Juan A.; Tuninetti, Jimena S.; Lorenzo, Agustín; Ceolín, Marcelo; Azzaroni, Omar; Rafti, Matías

Customer publications

Polyelectrolyte Capping As Straightforward Approach toward Manipulation of Diffusive Transport in MOF Films

Allegretto, Juan A.; Tuninetti, Jimena S.; Lorenzo, Agustín; Ceolín, Marcelo; Azzaroni, Omar; Rafti, Matías

We present experimental results demonstrating the suitability of polyelectrolyte capping as a simple and straightforward procedure to modify hydrophilic/hydrophobic character of porous films, thus allowing additional control on transport properties. In particular, we synthesized ZIF-8 metal organic framework (MOF) films, an archetypal hydrophobic zeolitic imidazolate framework, constituted by…
Polycaprolactone–Polyaniline Blend: Effects of the Addition of Cysteine on the Structural and Molecular Properties

Kogikoski, Sergio; Liberato, Michelle S.; Factori, Irina M.; da Silva, Emerson R.; Oliveira, Cristiano L. P.; Ando, Rômulo A.; Alves, Wendel A.

Customer publications

Polycaprolactone–Polyaniline Blend: Effects of the Addition of Cysteine on the Structural and Molecular Properties

Kogikoski, Sergio; Liberato, Michelle S.; Factori, Irina M.; da Silva, Emerson R.; Oliveira, Cristiano L. P.; Ando, Rômulo A.; Alves, Wendel A.

Organic molecule conjugates usually arrange themselves into complex multiphase systems that are sensitive to processing and local chemical environment. Moreover, these conjugates are able to self-assemble at different scales, varying from nano- to macroscale. In addition, intermolecular interactions introduce structural variations in the molecular packing and large-scale ordering, which directly…
pH-Responsive Schizophrenic Diblock Copolymers Prepared by Polymerization-Induced Self-Assembly

Canning, Sarah L.; Neal, Thomas J.; Armes, Steven P.

Customer publications

pH-Responsive Schizophrenic Diblock Copolymers Prepared by Polymerization-Induced Self-Assembly

Canning, Sarah L.; Neal, Thomas J.; Armes, Steven P.

Polymerization-induced self-assembly (PISA) is used for the highly convenient and efficient preparation of ampholytic diblock copolymer nanoparticles directly in acidic aqueous solution. Cationic nanoparticles comprising a protonated polyamine stabilizer block and a hydrophobic polyacid core-forming block are formed at pH 2. Micelle inversion occurs at pH 10 to produce anionic…
Phase behavior of reverse microemulsions based on Peceol®

Mouri, Abdelkader; Diat, Olivier; El Ghzaoui, Abdeslam; Bauer, Caroline; Maurel, Jean Claude; Devoisselle, Jean-Marie; Dorandeu, Christophe; Legrand, Philippe

Customer publications

Phase behavior of reverse microemulsions based on Peceol®

Mouri, Abdelkader; Diat, Olivier; El Ghzaoui, Abdeslam; Bauer, Caroline; Maurel, Jean Claude; Devoisselle, Jean-Marie; Dorandeu, Christophe; Legrand, Philippe

The phase diagram of the four component system Peceol®/lecithin/ethanol/water was studied at 25°C and at a fixed fraction of ethanol. It shows an isotropic W/O microemulsion phase, biphasic liquid system and Liquid crystalline phases. The stabilizing effect of lecithin with the fluidifying effect of ethanol on the microemulsion based on…
Phase Behavior of a New Class of Anthraquinone-Based Discotic Liquid Crystals

De, Joydip; Gupta, Santosh Prasad; Bala, Indu; Kumar, Sandeep; Pal, Santanu Kumar

Customer publications

Phase Behavior of a New Class of Anthraquinone-Based Discotic Liquid Crystals

De, Joydip; Gupta, Santosh Prasad; Bala, Indu; Kumar, Sandeep; Pal, Santanu Kumar

Five novel columnar liquid crystalline compounds (4.1–4.5) consisting of a central anthraquinone core carrying four alkoxy chains (R = n-C6H13, n-C8H17, n-C10H21, n-C12H25, and 3,7-dimethyl octyl) with two diagonally opposite 1-ethynyl-4-pentylbenzene units were synthesized, and their phase transitions were investigated between changes in the molecular structure and their self-assembly into…
Phase Behaviors of PU/SPI Green Composites Using SAXS Profiles

Madhukar, B. S.; Gowda, D. G. Bhadre; Annadurai, V.; Somashekar, R.; Siddaramaiah

Customer publications

Phase Behaviors of PU/SPI Green Composites Using SAXS Profiles

Madhukar, B. S.; Gowda, D. G. Bhadre; Annadurai, V.; Somashekar, R.; Siddaramaiah

A series of polyurethane (PU) green composites have been synthesized with varying amounts, namely 0, 2, 4, 8, and 12 wt% of soya protein isolate (SPI) by two methods. In the first method, castor oil (CO) and toluene-2,4-diisocyanate (TDI) molar ratio is CO/TDI : 1/1 with varying amounts of the…