Recently, photo-controlled reversible addition-fragmentation chain transfer (RAFT) polymerization has been successfully applied in digital light processing 3D printing. It provides a convenient way to tune the surface properties of printed object. However, so far, micro- and nanostructures reconfigurations based on photo-induced RAFT have not presented. In this work, one macro-photoiniferter, s...

We introduce the fully reversible folding of single chain nanoparticles (SCNPs) based on covalent hetero Diels-Alder (HDA) chemistry. A cyclopentadiene (Cp)-protected cyanodithioester (CDTE) monomer is designed and copolymerized with methyl methacrylate (MMA) via RAFT polymerization. The polymer chains are folded and subsequently unfolded by exploiting the reversible nature of the HDA reaction.

In this review article, the precise synthesis of functional polysaccharide materials using phosphorylase-catalyzed enzymatic reactions is presented. This particular enzymatic approach has been identified as a powerful tool in preparing well-defined polysaccharide materials. Phosphorylase is an enzyme that has been employed in the synthesis of pure amylose with a precisely controlled structure. ...

Поли-N-винилкапролактам (ПВКЛ), синтезированный полимеризацией с обратимой передачей цепи по механизму присоединения–фрагментации применением ксантатов для макромолекулярного дизайна, подвергается деполимеризации при нагревании в присутствии низкомолекулярного агента передачи - [1-(О-этилксантил)этил]бензола. Показано, что после активность 1-(O-этилксантил)этильных групп сохраняется и полимериз...

The reliable and efficient counting of active sites in catalytic olefin polymerization has been realized by using acyl chloride as the quench-labeling agent. However, molar ratio to alkylaluminum cocatalyst must be larger than 1 order completely depress side reactions between quencher Al-polymeryl that is formed via chain transfer reaction. In this work, a tetrahydrofuran/thiophene-2-carbonyl (...

We report the synthesis and solution properties of novel biobased thermoresponsive amphiphilic copolymers prepared using N,N-dimethyl lactamide acrylate (DMLA) ethyl lactate (ELA) as hydrophilic hydrophobic monomers, respectively. Copolymers with similar overall molecular weight but different monomer distribution profiles, such random, diblock, triblock, random–blocks, were photoinduced electro...

We investigate the colloidal stability of gold nanoparticles (AuNPs) coated with zwitterionic sulfobetaine polymers in aqueous solution. Zwitterionic polymers with different molar masses, synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of N,N'-dimethyl(methacrylamido propyl)ammonium propanesulfonate (SPP) exhibit a well known Upper Critical Solution Tempera...

Abstract Atom-transfer radical polymerization (ATRP) is a well-known technique for controlled polymer synthesis. However, the ATRP usually employed toxic heavy metal ionas as catalyst and was susceptible to molecular oxygen, which made it should be conducted under strictly anoxic condition. Conducting ambient biocompatible conditions major challenge. In this study, cytochrome C explored an effi...

A novel redox-active polymer based on a 9,10-di(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene (exTTF) system in combination with a conjugated backbone was synthesized via rhodium (Rh)-catalyzed polymerization of 2-ethynyl(exTTF), leading to polymers with low polydispersities. Composite electrodes containing this polymer exhibited chemically reversible two-electron oxidation in aqueous media. Th...

A strategy is presented that exploits the ability of synthetic polymers of different nature to disturb the strong self-assembly capabilities of amyloid based β-sheet forming peptides. Following a convergent approach, the peptides of interest were synthesized via solid-phase peptide synthesis (SPPS) and the polymers via reversible addition-fragmentation chain transfer (RAFT) polymerization, foll...