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Related publications (32)

Copolymerization of a cationic double-charged monomer and electrochemical properties of the copolymers

Jutta Christine Wandrey, Ricardo Losada Mateo

The free radical copolymerization of 1,3-bis(N,N,N-trimethylammonium)-2-propylmethacrylate dichloride (di-M) with acryloyloxyethyltrimethylammonium chloride (Q), diallyldimethylammonium chloride (DADMAC), and acrylamide (A) yielded novel polyelectrolytes a ...

2009

Novel applications of poly(ethylene glycol)-bl-poly(propylene sulfide) block copolymers

Conlin O'Neil

Block copolymers are comprised of repeating chemical groups (blocks) which commonly contain at least one hydrophilic block coupled to at least one hydrophobic block, forming an amphipathic macromolecule. This molecular arrangement drives the self assembly ...

EPFL2008

Ferrocene-Containing Optically Active Liquid-Crystalline Side-Chain Polysiloxanes with Planar Chirality

Toralf Scharf

Optically active liquid-crystalline side-chain polysiloxanes have been prepared by grafting planar chiral ferrocene-based vinyl monomers onto commercially available polyhydrosiloxane. Two ferrocene monomers have been synthesized: a linear-type monomer, whi ...

2006

Dynamic properties of sandwich structures with integrated shear-thickening fluids

Véronique Michaud, Pierre-Etienne Bourban, John Christopher Plummer, Christian Fischer, Sylvia Aviva Braun

The integration of shear-thickening fluids (STFs) into composite structures has been investigated with the aim of tuning part stiffness and damping capacity under dynamic deformation. Results from oscillatory rheological measurements for a STF based on con ...

2006

Theoretical Considerations and Computational Analysis of the Complexity in Polyketide Synthesis Pathways

Vassily Hatzimanikatis

The emergence of antimicrobial resistance has led to an increase in research directed toward the engineering of novel polyketides. To date, less than 10 000 polyketide structures have been discovered exptl.; however, the theor. anal. of polyketide biosynth ...

2005

Quaternary ammonium polymer, its preparation, its use for separating biomolecules

Jutta Christine Wandrey

A linear water-soluble quaternary ammonium polymer having a homopolymeric chain of repeating unit of general formula (I):where each of R1 and R2 independently represents a member selected from the group consisting of linear or branched alkyl, hydroxyalkyl, ...

2002

Ab initio molecular dynamics investigation of the structure and the noncollinear magnetism in liquid oxygen: Occurrence of O-4 molecular units

Alfredo Pasquarello

We modeled liquid oxygen using ab initio molecular dynamics in which both the atomic structure and the noncollinear magnetic structure evolve without constraints. The atomic structure shows preference for parallel alignment of first-neighbor molecules and ...

2002

Quaternary ammonium polymer, its preparation, and use for separating biomolecules

Jutta Christine Wandrey

A linear water-sol. quaternary ammonium polymer having a homopolymeric chain of repeating unit I (R1 and R2 = linear or branched alkyl, hydroxyalkyl, alkoxyalkyl groups having 1-6 C atoms; X- = anion and n = 30-220) was prepd. The polymer has a molar mass ...

(Ecole Polytechnique Federale De Lausanne, Switz.).1999

Partial Molar and Specific Volumes of Polyelectrolytes: Comparison of Experimental and Predicted Values in Salt-free Solutions

Jutta Christine Wandrey, David Hunkeler, Artur Bartkowiak

The partial molar volume, .hivin.V, and the partial sp. vol., .hivin.n, were estd. for more than 25 polyelectrolyte structures. The materials investigated by d. measurements in highly dild. aq. solns. (c < 10-2 monomol/L) included both synthetic polyelectr ...

1999

Surface analysis of polyester materials using time of flight secondary ion mass spectrometry

The use of many plastic packaging materials such as PVC, PAN, etc. to protect food and beverages is restricted because of toxicity and recycling problems and there is a need for the development of new packaging materials with good gas barrier properties. P ...

EPFL1997

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