Concept

Polymérisation radicalaire

Publications associées (404)

Hybrid laser 3D microprocessing in glass/polymer micromechanical sensor: towards chemical sensing applications

We demonstrate the fabrication of a 3D polymer/glass micromechanical sensor by combining two femtosecond laser direct writing processes: subtractive laser-assisted chemical etching combined with additive two-photon polymerization techniques. In the first s ...

SPIE-INT SOC OPTICAL ENGINEERING2018

Copper-catalyzed methylative difunctionalization of alkenes

Qian Wang, Jieping Zhu, Xu Bao, Minh Tu Ha, Takayuki Yokoe

Trifluoromethylative difunctionalization and hydrofunctionalization of unactivated alkenes have been developed into powerful synthetic methodologies. On the other hand, methylative difunctionalization of olefins remains an unexplored research field. We rep ...

2018

Core-Shell Structure of Organic Crystalline Nanoparticles Determined by Relayed Dynamic Nuclear Polarization NMR

David Lyndon Emsley, Arthur César Pinon, Jasmine Viger-Gravel

The structure of crystalline nanoparticles (CNPs) is determined using dynamic nuclear polarization (DNP) enhanced NMR spectroscopy experiments. The CNPs are composed of a crystalline core containing an active pharmaceutical ingredient (compound P), coated ...

AMER CHEMICAL SOC2018

MOF/polymer composite synthesized using a double solvent method offers enhanced water and CO2 adsorption properties

Wendy Lee Queen, Daniel Teav Sun, Shuliang Yang, Li Peng, Mehrdad Asgari

A double solvent method is for the first time used to synthesize a polymer composite that is constructed by a Ni-pyrazolate MOF and polydopamine (PDA). The resulting composite shows significantly enhanced water and CO2 adsorption properties compared to the ...

2018

Hydration mediated interfacial transitions on mixed hydrophobic/hydrophilic nanodroplet interfaces

Sylvie Roke, Nikolay Smolentsev, Halil Ibrahim Okur, Rüdiger Scheu, Filip Kovacik

Interfacial phase transitions are of fundamental importance for climate, industry, and biological processes. In this work, we observe a hydration mediated surface transition in supercooled oil nanodroplets in aqueous solutions using second harmonic and sum ...

AMER INST PHYSICS2018

Photoinitiator-free Laser Fabrication of Ultra-compact, Low-loss Waveguides in Polydimethylsiloxane

Demetri Psaltis, Christophe Moser, Giulia Panusa, Ye Pu, Jieping Wang

Owing to its excellent elasticity, wide spectral range of transparency, and outstanding chemical and thermal stability, polydimethylsiloxane (PDMS) is an elastomer of great technological importance, being widely used in the fabrication of microfluidic and ...

SPIE-INT SOC OPTICAL ENGINEERING2018

Size limitations on achieving tough and healable fibre reinforced composites through the use of thermoplastic nanofibres

Véronique Michaud, Amaël Maximilien Cohades, Lode Geeraard Daelemans

Phase-separated blends of epoxy and poly(ε-caprolactone) (PCL) provide crack repair in composites after a thermal treatment at 150 °C, but decrease the material’s fracture toughness. This article investigates the combination of healing with interlaminar fr ...

2018

A new cross-linkable 9,10-diphenylanthracene derivative as a wide bandgap host for solution-processed organic light-emitting diodes

Mohammad Khaja Nazeeruddin, Aron Joel Huckaba

Efficient organic light-emitting diodes (OLEDs) can be obtained using multilayered architectures where the processes of charge injection, transport and recombination are separated and optimized in each layer. Processing these structures from solution requi ...

ROYAL SOC CHEMISTRY2018

Fabrication of Hexagonal-Prismatic Granular Hydrogel Sheets

Esther Amstad, Huachuan Du, Mathias Steinacher, Alice Cont

Natural soft materials are often composed of proteins that self-assemble into well-defined structures and display mechanical properties that cannot be matched by manmade materials. These materials are frequently mimicked with hydrogels whose mechanical pro ...

2018

From isonitrile to nitrile via ketenimine intermediate: Palladium-catalyzed 1,1-carbocyanation of ally carbonate by alpha-isocyanoacetate

Qian Wang, Jieping Zhu, Charlotte Marie Sornay, Guanyinsheng Qiu, Sheng-Cai Zheng, David Savary

A palladium-catalyzed 1,1-carbocyanation of allyl carbonate by alpha-quaternary alpha-isocyanoacetate was developed. Formation of ketenimine followed by homolysis of the C-N bond and recombination of the resulting caged radical pair was proposed to account ...

PERGAMON-ELSEVIER SCIENCE LTD2018

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