Dually responsive diblock random copolymers poly(nPA0.8-co-DEAEMA0.2)-block-poly(nPA0.8-co-EA0.2) were made from N-n-propylacrylamide (nPA), 2-(diethylamino)ethyl methacrylate (DEAEMA) and N-ethylacrylamide (EA) via reversible addition-fragmentation chain transfer (RAFT) polymerization. Copolymers of different block length ratios, poly(nPA28-co-DEAEMA7)-block-poly(nPA29-co-EA7) (P1) and poly(nP...

Amphiphilic rod-coil diblock copolymers consisting of flexible poly(ethylene oxide) (PEO) and rodlike poly{(+)-2,5-bis[4'-((S)-2-methylbutoxy)phenyl]styrene} (PMBPS) with predominant hydrophobic contents formed ordered monolayers at the air-water interface. The structures of monolayers transferred to a mica substrate at different surface pressures by the Langmuir-Blodgett method were investigat...

Defined aggregates of polymers such as polymeric micelles are of great importance in the development of pharmaceutical formulations. The amount of drug that can be formulated by a drug delivery system is an important issue, and most drug delivery systems suffer from their relatively low drug-loading capacity. However, as the loading capacities increase, i.e., promoted by good drug-polymer inter...

Various ratios PEOz-PDLLA diblock copolymers were synthesized through ring-opening polymerization of DL-lactide initiated by monohydroxyl terminated poly(2-ethyl-2-oxazoline) (PEOz-OH). The chemical composition and molar mass the resulting determined using NMR GPC. Spherical micelles with a diameter from 104 to 136 nm obtained via self-assembly in water, as evidenced TEM DLS. CMC was well below...

We investigated the behavior of a pH-responsive polystyrene?b?poly(2-dimethylamino)ethyl methacrylate (PS?b?PDMAEMA) diblock copolymer at air/water interface. synthetized different copolymers with small hydrophobic PS block constant length attached to polyelectrolyte PDMAEMA blocks various lengths. demonstrate that Langmuir monolayer is formed collapsed anchoring hydrophilic By combining macros...

Abstract We report a novel method to synthesize degradable poly(vinyl ether)s with cleavable thioacetal bonds periodically arranged in the main chains using controlled cationic copolymerization of vinyl ethers 7‐membered cyclic ( 7‐CTA ) via degenerative chain transfer (DT) internal bonds. The bonds, which are introduced into by ring‐opening ethers, serve as in‐chain dormant species allow homog...

BACKGROUND Channel proteins like the engineered FhuA Δ1-159 often cannot insert into thick polymeric membranes due to a mismatch between the hydrophobic surface of the protein and the hydrophobic surface of the polymer membrane. To address this problem usually specific block copolymers are synthesized to facilitate protein insertion. Within this study in a reverse approach we match the protein ...

In the current work, we demonstrate how coordination chemistry can be employed to direct self-assembly based on strong hydrophobic interactions. To investigate the influence of coordination sphere geometry on aqueous self-assembly, we synthesized complexes of the amphiphilic perylene diimide terpyridine ligand with the first-row transition-metal centers (zinc, cobalt, and nickel). In aqueous me...