John Christopher Plummer

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Periodontitis affects the attachment of natural teeth, and infection or inflammation associated with periodontitis may affect peri-implant tissues. Enamel matrix derivative (EMD) proteins provide stimulation for self-regeneration of the damaged tissue when ...

The development of photovoltaic (PV) devices based on dye-sensitized TiO2-coated Ti fibers has opened up exciting possibilities for novel PV textile applications. The cohesion and adhesion of the TiO2 layer are identified as crucial factors in maintaining ...

The invention relates in particular to a method to process composite structures with tailored stiffness and damping performance incorporating a smart material, namely a shear thickening fluid (STF), preferably at the interface between two elements belongin ...

A series of trimethylsilyl end-functionalized aliphatic hyperbranched polymers has been used to template porosity in polymethylsilsesquioxane films prepared by heat treatment of a spin cast methylsilsesquioxane precursor. By varying the extent of the end-functionalization, closed pore foams with controlled pore sizes and pore contents of up to 40 vol% were obtained by chemically-induced phase separation and thermal degradation of the hyperbranched polymers during the heat treatment.

The invention relates to a rail pad (10, lOa-v, 10α-η) comprising: a) a pad matrix (1) comprising a first material and b) at least one damping element (2) at least partially encapsulated or embedded in the pad matrix (1), said damping element (2) comprisin ...

Poly(oxyethylene 20 sorbitan) monolaurate (Tween® 20) methacrylates were synthesized by coupling methacryloyl chloride (MeOCl) to Tween 20 in the presence of 4-(N,N-dimethylamino) pyridine, using THF as a solvent, in order to investigate their suitability ...

When the effects of physical aging below Tg are erased, the rheological response of a series of aliphatic hyperbranched polyesters is Newtonian and the melt viscosity scales roughly linearly with Mw at high Mw, indicating entanglement to be absent. The rheological behavior is also highly sensitive to the nature of the terminal groups, suggesting the overall behavior to be close to that of an assembly of compact coreshell "particles". There are therefore strong parallels between the physical behavior of the

PLLA crystallization rates increase with nHA content owing to increased nucleation, which compensates a decrease in spherulite growth rate, G, at 100 to 130 °C, and to suppression of the twin peak in G(T) seen in pure PLLA, linked to a transition from the ...

Supercritical carbon dioxide processing of poly--lactide (PLLA)/hydroxyapatite (nHA) nanocomposites was investigated as a means to prepare foams suitable as scaffolds in bone tissue engineering applications. For given foaming parameters, addition of nHA to ...

Polypropylene/montmorillonite (iPP/MMT) has been investigated as an alternative to isotactic polypropylene (iPP) as a matrix for glass mat thermoplastic (GMT) composites. The melt viscosity increased significantly on MMT addition, but iPP/5.9wt% MMT-based ...

The dynamic nature of supramolecular networks of telechelic polymers offers new avenues for the design of novel materials with enhanced melt strength and extensibility, increased energy at break, or self-healing properties. However, monitoring the kinetics ...

John Christopher Plummer

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Scaffold requirements for periodontal regeneration with enamel matrix derivative proteins

Mechanical integrity of dye-sensitized photovoltaic fibres

Structures with adaptive stiffness and damping integrating shear thickening fluids

Templating porosity in polymethylsilsesquioxane coatings using trimethylsilylated hyperbranched polymers

Multi-material rail pad and method for manufacturing same

Synthesis and photopolymerization of Tween 20 Methacrylate/N-vinyl-2-Pyrrolidone blend

Rheological Characteristics of Hyperbranched Polyesters

Glass Fiber Reinforced Polypropylene Nanocomposites

Solidification Behaviour Of PLLA/nHA Nanocomposites

Synthetic Polymers for Cardiovascular Use

Biodegradable polylactide/hydroxyapatite nanocomposite foam scaffolds for bone tissue engineering applications

Influence of Frequency Dependent Dielectric and Mechanical Properties on the Performance for Dielectric Elastomer Actuators

Hybrid Glass Mat-reinforced Polypropylene-Montmorillonite Nanocomposites

Nanostructured materials based on latex and powder precursors

Biocomposites of nanofibrillated cellulose with thermoset resins

Dynamics of hydrogen-bonded end groups in bulk polymers revealed by solid-state NMR spectroscopy relaxation dispersion experiments

Plasticization of PLA foams for tissue engineering

Metallocene catalyzed polyolefines for improving thermal and mechanical properties of bitumen blends

Plasticization of PLLA Foams for Tissue Engineering

High k Dielectric Elastomeric Materials for Low Voltage Applications