Publications related to Functional polymer brushes via surface-initiated controlled radical polymerizations

Protein-Functionalized Polymer Brushes

Harm-Anton Klok, Kai Johnsson, Stefano Tugulu, India Christina Sielaff, Anke Arnold

A new strategy for the prepn. of protein-functionalized polymer brushes is reported, which is based on a combination of surface-initiated atom transfer radical polymn. (ATRP), p-nitrophenyl chloroformate activation of the surface hydroxyl groups, and subse ...

2005

Synthesis and characterization of thermoresponsive polymers, hydrogels and microgels, based on poly(N-substituted acrylamides)

Stimuli-responsive polymers have the unique property of undergoing a reversible phase transition. This property has attracted much interest for their application in the field of medicine and biotechnology, such as drug delivery systems. Linear polymers of ...

EPFL2004

Interactions of highly charged polyelectrolytes with monolayers of oppositely charged amphiphiles

Jutta Christine Wandrey, Vesela Malinova

Poly(vinylbenzylammonium chloride) (PVBAC) polyelectrolytes possessing defined chain lengths, narrow chain length distributions, uniform charge d., but substituents of different hydrophilicity and size at the quaternary ammonium group were used as model co ...

2004

Charge density, solvent polarity and counterion nature effects on the solution properties of some polycations

Jutta Christine Wandrey

The electrolytic cond. and soln. viscosity of some strong polycations, which possess the ammonium quaternary centers either attached to an acrylic macromol. chain (polycation PDMAEMQ type), or in the backbone (polycation PCA type), have been measured to id ...

2004

Synthesis and Solid State Properties of Novel Fluorescent Polyester Star Polymers

Harm-Anton Klok

Two novel tetra- and hexahydroxy functionalized perylene chromophores have been used as initiators for the Sn(oct)2 catalyzed ring-opening polymerization of different lactones. The arms of the resulting star polymers were comprised of either crystallizable ...

2003

Influence of substrate morphology on the cohesion and adhesion of thin PECVD oxide films on semi-crystalline polymers

Yves Leterrier, Gil Rochat

The influence of the surface morphology of semi-crystalline poly(ethylene terephthalate) (PET) and polyamide 12 (PA12) films on the adhesion and cohesion of thin oxide coatings is analysed, with attention paid to the role of spherulites and processing addi ...

2003

Structural Arrest in Dense Star-Polymer Solutions

Giuseppe Foffi, Francesco Sciortino

The dynamics of star polymers is investigated via extensive molecular and Brownian dynamics simulations for a large range of functionality f and packing fraction

\eta

. The calculated isodiffusivity curves display both minima and maxima as a function of $ ...

2003

Partial oxidation of toluene to benzaldehyde and benzoic acid over model vanadia/titania catalysts

Albert Renken, Lioubov Kiwi, Fabio Rainone

Pure and K-doped vanadia/titania catalysts have been studied by transient response method and in situ DRIFTS during toluene partial oxidn. They were characterized by FT-Raman spectroscopy, TPR, TPD of pyridine and XPS. In order to elucidate the role of dif ...

2003

Acrylic acid grafting and collagen immobilization on poly(ethylene terephthalate) surfaces for adherence and growth of human bladder smooth muscle cells

Florian Maria Wurm, Peter Frey

In tissue engineering, degradable or non-degradable polymer matrices can act as cell-carrier-scaffolds. Cell adhesion and growth on these scaffolds can be promoted by immobilizing extracellular matrix proteins. Therefore, in this study, polymer poly(ethyle ...

2002

Human urothelial cells grown on collagen adsorbed to surface-modified polymers

Florian Maria Wurm, Peter Frey

OBJECTIVES: Tissue engineering methods can be applied to regenerate diseased, or congenitally missing, urinary tract tissues. Urinary tract tissue cell cultures must be established in vitro and adequate matrices, acting as cell carriers, must be developed. ...

2002

Functional polymer brushes via surface-initiated controlled radical polymerizations

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Protein-Functionalized Polymer Brushes

Synthesis and characterization of thermoresponsive polymers, hydrogels and microgels, based on poly(N-substituted acrylamides)

Interactions of highly charged polyelectrolytes with monolayers of oppositely charged amphiphiles

Charge density, solvent polarity and counterion nature effects on the solution properties of some polycations

Synthesis and Solid State Properties of Novel Fluorescent Polyester Star Polymers

Influence of substrate morphology on the cohesion and adhesion of thin PECVD oxide films on semi-crystalline polymers

Structural Arrest in Dense Star-Polymer Solutions

Partial oxidation of toluene to benzaldehyde and benzoic acid over model vanadia/titania catalysts

Acrylic acid grafting and collagen immobilization on poly(ethylene terephthalate) surfaces for adherence and growth of human bladder smooth muscle cells

Human urothelial cells grown on collagen adsorbed to surface-modified polymers

Synthesis and characterization of thermoresponsive polymers, hydrogels and microgels, based on poly(N-substituted acrylamides)

Charge density, solvent polarity and counterion nature effects on the solution properties of some polycations

Interactions of highly charged polyelectrolytes with monolayers of oppositely charged amphiphiles

Protein-Functionalized Polymer Brushes

Synthesis and Solid State Properties of Novel Fluorescent Polyester Star Polymers

Partial oxidation of toluene to benzaldehyde and benzoic acid over model vanadia/titania catalysts

Influence of substrate morphology on the cohesion and adhesion of thin PECVD oxide films on semi-crystalline polymers

Human urothelial cells grown on collagen adsorbed to surface-modified polymers

Structural Arrest in Dense Star-Polymer Solutions

Acrylic acid grafting and collagen immobilization on poly(ethylene terephthalate) surfaces for adherence and growth of human bladder smooth muscle cells