Publications associées à Polymère de condensation

Increased electromechanical sensitivity of polysiloxane elastomers by chemical modification with thioacetic groups

Chemically cross-linked polydimethylsiloxane (PDMS) elastomers have gained importance as a dielectric in elastic capacitor actuators, which elongate when electrically charged. Common PDMS elastomers have a dielectric permittivity of only about 3 and thus e ...

2020

Electrochemically polymerized poly (3, 4-phenylenedioxythiophene) as efficient and transparent counter electrode for dye sensitized solar cells

Nikolaos Vlachopoulos, Ulf Anders Hagfeldt, Lin Yang, Jiahuan Zhang, Yan Hao

A new conducting polymer poly (3, 4-phenylenedioxythiophene) is synthesized by the electrochemical polymerization technique with different solvents. We find that solvents used in electrochemical polymerization play important roles for the catalytic activit ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Solar production of nylon polymers and prescursors for nylon polymer production

Sophia Haussener, Miguel Antonio Modestino

The present invention relates to process intensification, and renewable processing routes for polymer production, for example the solar production of Nylon 6,6 and precursors relevant for the Nylon 6,6 production (such as hydrogen, adiponitrile and hexaned ...

2018

Semiaromatic Polyamides and Copolyamides Comprising Kinked Repeating Units

Julien Philippe Cretenoud

The replacement of metals with polymer-based materials is considered to be key to reducing weight, cost, and cycle times in different technological applications, including the automotive and aerospace industries. Semiaromatic polyamides are particularly at ...

EPFL2018

High-temperature copolyamides obtained by the efficient transamidation of crystalline-crystalline polyamide blends

Véronique Michaud, John Christopher Plummer, Holger Frauenrath, Sylvain Cyril Claude Galland

High-performance thermoplastic composites based on semiaromatic polyamides are prime candidates for metal replacement in lightweight structural applications. However, the low ductility and toughness of semiaromatic polyamides remain major obstacles to thei ...

Wiley-Blackwell2017

A facile synthetic strategy to polysiloxanes containing sulfonyl side groups with high dielectric permittivity

The chemical modification of polymers with lateral polar groups increases their dielectric permittivity above the glass transition temperature, making them attractive materials for dielectric elastomer actuators. Despite the large dipole moment of the sulf ...

Royal Society of Chemistry2017

Squaric acid mediated bioconjugation expanded to polymers prepared by ATRP

Harm-Anton Klok, Frederik Roman Wurm

The squaric acid mediated bioconjugation reaction is an attractive approach for the amine-selective protein modification with side-chain functional polymers. This manuscript presents 3 squaric acid based atom transfer radical polymerization (ATRP) initiato ...

Royal Soc Chemistry2014

One-pot photoinduced synthesis of conductive polythiophene-epoxy network films

Marco Sangermano, Federica Sordo

In this paper, we describe a novel methodology for fabricating conductive epoxy-polythiophene network films by simultaneous photoinduced step-growth and cationic ring opening polymerization processes. For this purpose, formulations containing a bifunctiona ...

Elsevier Sci Ltd2013

Molecular Imprinting with Ruthenium Porphyrin Catalysts

Kay Severin, Estelle Burri

A ruthenium meso-tetra[4-(vinylbenzoxy)benzyl]porphyrin catalyst with four polymerizable side chains was synthesized in three steps from commercially available starting materials. The polymerizable side chains allowed the incorporation of this complex in h ...

2006

Syntheses and catalytic applications of immobilized ruthenium complexes

Estelle Burri

A ruthenium meso-tetra[4-(vinylbenzoxy)benzyl]porphyrin catalyst with four meso-polymerizable side chains was synthesized in three steps from commercially available starting materials. The polymerizable side chains allowed the incorporation of this complex ...

EPFL2006