Skip to main content
All Posts By

Sintering of Ultrathin Gold Nanowires for Transparent Electronics

Maurer, Johannes H. M.; González-García, Lola; Reiser, Beate; Kanelidis, Ioannis; Kraus, Tobias

Customer publications

Sintering of Ultrathin Gold Nanowires for Transparent Electronics

Maurer, Johannes H. M.; González-García, Lola; Reiser, Beate; Kanelidis, Ioannis; Kraus, Tobias

Ultrathin gold nanowires (AuNWs) with diameters below 2 nm and high aspect ratios are considered to be a promising base material for transparent electrodes. To achieve the conductivity expected for this system, oleylamine must be removed. Herein we present the first study on the conductivity, optical transmission, stability, and structure…
Sharp and strong “Brill transition” of poly(hexamethylene dithiocarbonate)

Zhao, Ti-Peng; Celli, Annamaria; Ren, Xiang-Kui; Xu, Jia-Ru; Yang, Shuang; Liu, Chen-Yang; Chen, Er-Qiang

Customer publications

Sharp and strong “Brill transition” of poly(hexamethylene dithiocarbonate)

Zhao, Ti-Peng; Celli, Annamaria; Ren, Xiang-Kui; Xu, Jia-Ru; Yang, Shuang; Liu, Chen-Yang; Chen, Er-Qiang

In this paper, the reversible crystal-crystal transition of poly(hexamethylene dithiocarbonate) (PHMDC) has been systematically studied. According to various experimental results, we confirm that the transition shares the common features with Brill transition that is widely observed in nylons. This transition is clearly associated with the reversible trans-gauche conformational transformation of…
Shaping nanofiltration channels in a carbonaceous membrane via controlling the pyrolysis atmosphere

Xing, Zheng; Ng, Yeap Hung; Tay, Siok-Wei; Oon, Rachel Pek Har; Hong, Liang

Customer publications

Shaping nanofiltration channels in a carbonaceous membrane via controlling the pyrolysis atmosphere

Xing, Zheng; Ng, Yeap Hung; Tay, Siok-Wei; Oon, Rachel Pek Har; Hong, Liang

This work investigates the effect of atmosphere on pyrolysis of a polymer matrix (precursor) for directing its transformation towards more disordered graphene species and smaller graphitic nanograins. These two structural characteristics are crucial to the generation of nano-channels (NCs) pertinent to nanofiltration (NF). Two measures are explored hereby to conduct…
Self-supporting thin films of imogolite and imogolite-like nanotubes for infrared spectroscopy

Liao, Yuanyuan; Picot, Pierre; Brubach, Jean-Blaise; Roy, Pascale; Le Caër, Sophie; Thill, Antoine

Customer publications

Self-supporting thin films of imogolite and imogolite-like nanotubes for infrared spectroscopy

Liao, Yuanyuan; Picot, Pierre; Brubach, Jean-Blaise; Roy, Pascale; Le Caër, Sophie; Thill, Antoine

Due to their narrow and well-defined structure, single wall nanotube, aluminosilicate nanotubes (imogolites) are excellent candidates to study how water is modified by either confinement or by the interface nature. A protocol is provided here to produce imogolite films that are ideally suited for infrared studies. Two types of imogolites…
Self-Regulated Ion Permeation through Extraction Membranes

Duhamet, Jean; Möhwald, Helmuth; Pleines, Maximilian; Zemb, Thomas

Customer publications

Self-Regulated Ion Permeation through Extraction Membranes

Duhamet, Jean; Möhwald, Helmuth; Pleines, Maximilian; Zemb, Thomas

Separation of rare earth compounds from water into an organic phase in practical cases requires the use of specific ion binding ligands in high concentrations. These tend to form complex liquid crystalline phases preferentially at ion-rich locations inside a pertraction membrane. They form a blocking layer above an ion concentration…
RAFT Aqueous Dispersion Polymerization of N-(2-(Methacryloyloxy)ethyl)pyrrolidone: A Convenient Low Viscosity Route to High Molecular Weight Water-Soluble Copolymers

Cunningham, Victoria J.; Derry, Matthew J.; Fielding, Lee A.; Musa, Osama M.; Armes, Steven P.

Customer publications

RAFT Aqueous Dispersion Polymerization of N-(2-(Methacryloyloxy)ethyl)pyrrolidone: A Convenient Low Viscosity Route to High Molecular Weight Water-Soluble Copolymers

Cunningham, Victoria J.; Derry, Matthew J.; Fielding, Lee A.; Musa, Osama M.; Armes, Steven P.

RAFT solution polymerization of N-(2-(methacryoyloxy)ethyl)pyrrolidone (NMEP) in ethanol at 70 °C was conducted to produce a series of PNMEP homopolymers with mean degrees of polymerization (DP) varying from 31 to 467. Turbidimetry was used to assess their inverse temperature solubility behavior in dilute aqueous solution, with an LCST of approximately…
RAFT Dispersion Alternating Copolymerization of Styrene with N-Phenylmaleimide: Morphology Control and Application as an Aqueous Foam Stabilizer

Yang, Pengcheng; Mykhaylyk, Oleksandr O.; Jones, Elizabeth R.; Armes, Steven P.

Customer publications

RAFT Dispersion Alternating Copolymerization of Styrene with N-Phenylmaleimide: Morphology Control and Application as an Aqueous Foam Stabilizer

Yang, Pengcheng; Mykhaylyk, Oleksandr O.; Jones, Elizabeth R.; Armes, Steven P.

We report a new nonaqueous polymerization-induced self-assembly (PISA) formulation based on the reversible addition–fragmentation chain transfer (RAFT) dispersion alternating copolymerization of styrene with N-phenylmaleimide using a nonionic poly(N,N-dimethylacrylamide) stabilizer in a 50/50 w/w ethanol/methyl ethyl ketone (MEK) mixture. The MEK cosolvent is significantly less toxic than the…
Pyrrolidinium-functionalized poly(arylene ether sulfone)s for anion exchange membranes: Using densely concentrated ionic groups and block design to improve membrane performance

Dong, Xue; Lv, Dong; Zheng, Jifu; Xue, Boxin; Bi, Weihui; Li, Shenghai; Zhang, Suobo

Customer publications

Pyrrolidinium-functionalized poly(arylene ether sulfone)s for anion exchange membranes: Using densely concentrated ionic groups and block design to improve membrane performance

Dong, Xue; Lv, Dong; Zheng, Jifu; Xue, Boxin; Bi, Weihui; Li, Shenghai; Zhang, Suobo

To design and construct high ionic conductive anion exchange membranes (AEMs), tetra-pyrrolidinium-based block poly(arylene ether sulfone)s were synthesized. Pyrrolidinium groups were densely and controllably introduced into the polymer scaffold using a novel tetra-functionalized monomer, 4, 4′-oxybis (2,6-bis(pyrrolidinyl-1-methyl) phenol) (OBBPYP), which was synthesized via the Mannich…
Protein encapsulation in SBA-15 with expanded pores

Garcia, P. R. A. F.; Bicev, R. N.; Oliveira, C. L. P.; Sant’Anna, O. A.; Fantini, M. C. A.

Customer publications

Protein encapsulation in SBA-15 with expanded pores

Garcia, P. R. A. F.; Bicev, R. N.; Oliveira, C. L. P.; Sant’Anna, O. A.; Fantini, M. C. A.

This work reports the encapsulation of proteins with different molecular weights into SBA-15 ordered mesoporous silica, a potential immunological adjuvant. The Human Gammaglobulin G (HGG) and Bovine Serum Albumin (BSA) proteins were incorporated into the mesoporous silica with expanded pores. A structure swelling agent, triisopropylbenzene (TIPB), was used in the…