We report the synthesis of a series of anionic dendritic peptide amphiphiles of increasing hydrophobic character. By establishing state diagrams we describe their pH and ionic strength triggered self-assembly into supramolecular nanorods in water and highlight the impact of hydrophobic shielding in the supramolecular polymerisation process. Via the incorporation of fluorinated peptide side chai...

Polymerisation characteristics of conventional units for curing composite resins are insufficient considering handling feasibilities particularly in the premolar and molar region. There is also hazardous ocular effect of near ultra-violet part of visible spectra. Sodium high pressure lamp technology has been applied to develop a new high pressure zinc lamp, which is for the first time used for ...

High intensity ultrasound has been applied to two classes of step-growth polymerisation. The ring-opening polymerisation of cyclic lactones to polyesters was accelerated under 20 kHz ultrasound but, in the case of delta-valerolactone, sonication also promoted a depolymerisation reaction so that the molecular weight fell during later stages of the reaction. Sonication was also applied to the pre...

There is an existing problem of cumulative hazardous effect of violet and near ultra-violet light which is produced by standard polymerisation units. Another restrict is shallow depth of cure, particularly of darker composite shades in premolar and molar region. Searching for better light source we used indium resonance lines from several indium high pressure lamps and tested curing effect on t...

Abstract Radikalische Polymerisation mit reversibler Additions‐Fragmentierungs‐Kettenübertragung (RAFT Polymerisation) wird erfolgreich eingesetzt, um Polymere wohldefinierter Architektur zu erzeugen. Für die RAFT‐Polymerisation eine Quelle von Radikalen benötigt. Jüngste Arbeiten haben gezeigt, dass diese, für minimale Nebenreaktionen und hohe räumlich‐zeitliche Kontrolle, direkt aus dem RAFT‐...

A versatile synthetic methodology is presented for the preparation of graft copolymers with mixed distributions using reversible addition–fragmentation chain transfer (RAFT) polymerisation.