A selective divalent chain transfer agent is designed to exclusively lead polyolefin growth on a pentanediyl moiety via coordinative polymerization (CCTP).

• NHCs catalyzes polymerization of lactones by acting as a base. Electronic effects determines the activation energy. Electron withdrawing groups on decreases catalytic activity. Highly basic may change reaction mechanism. HOMO energy correlates with eneregy. Polymerization reactions using renewable raw material substrate (namely, ?-valerolactone) and N-heterocyclic carbenes (NHC) organocatalys...

Polymer layer growth by free radical graft polymerization (FRGP) and controlled nitroxide-mediated graft polymerization (NMGP) of polystyrene was achieved by atmospheric pressure hydrogen plasma surface activation of silicon. Kinetic polystyrene layer growth by atmospheric pressure plasma-induced FRGP (APPI-FRGP) exhibited a maximum surface-grafted layer thickness (125 A after 20 h) at an initi...

We report the first use of a polymerization-based ELISA substrate solution employing enzymatically mediated radical polymerization as a dual-mode amplification strategy. Enzymes are selectively coupled to surfaces to generate radicals that subsequently lead to polymerization-based amplification (PBA) and biodetection. Sensitivity and amplification of the polymerization-based detection system we...

Single-step process for production of porous scaffold based on poly(pentadecanolide) (PPDL) is reported. The scaffold is produced via in situ porosity generation during ring-opening polymerization (ROP) of the lactone pentadecanolide (PDL) in high internal phase emulsion (HIPE) using a water soluble enzyme (Lipase TL) as catalyst. The enzyme present in dispersed aqueous phase of HIPE effectivel...

Block copolymers are fascinating and complex materials that have been used in a range of diverse scientific and technological capacities. We demonstrate that a single one-step approach based on dual simultaneous polymerizations is a viable technique for the synthesis of a wide range of block copolymers by combining two dissimilar polymerization systems and using a dual-functional initiator. The...

Hollow polymeric nanocapsules have attracted great interest in recent years due to their broad applications in controlledrelease carriers, catalysis, nanoreactors, and encapsulation of guest molecules. Polymeric nanocapsules have been typically fabricated via the selfassembly of block copolymers, 5 polymerization within lipid vesicles, emulsion polymerization, 14 and the sacrificial core-templa...

A comparison between Au, TiO2 and self-catalysed growth of SnO2 nanostructures using chemical vapour deposition is reported. TiO2 enables growth of a nanonetwork of SnO2 , whereas self-catalysed growth results in nanoclusters. Using Au catalyst, single-crystalline SnO2 nanowire trees can be grown in a one-step process. Two types of trees are identified that differ in size, presence of a catalyt...