Polybutadiene nanoparticles were synthesized via batch emulsion polymerization of butadiene in the presence of potassium persulfate, disproportionate rosinate potassium cation and t-dodecyl mercaptane as initiator, emulsifier and chain transfer agent, respectively. Polymerization reaction was performed at different temperatures (60, 70 and 80 °C). Conversion was measured at the various time int...

We report a simple temperature-responsive bioconjugate system comprising superfolder green fluorescent protein (sfGFP) decorated with poly[(oligo ethylene glycol) methyl ether methacrylate] (PEGMA) polymers. We used amber suppression to site-specifically incorporate the non-canonical azide-functional amino acid p-azidophenylalanine (pAzF) into sfGFP at different positions. The azide moiety on m...

Using either nitroxide mediated polymerization (NMP) or reversible addition fragmentation transfer (RAFT) techniques, novel block copolymers that present terminal acetylenes, in the side chain of the styrenic block, were obtained with narrow polydispersities and targeted molecular weights. For the conversion of these acetylene-functionalized polymers to amphiphilic block copolymers, RAFT techni...

This study reports the synthesis of novel poly(1-vinylimidazole)-b-poly(9-vinylcarbazole) (PVI-b-PVK) block copolymers with varying monomer ratios using reversible addition-fragmentation chain-transfer (RAFT) polymerization and their incorporation in responsive composite materials. Specifically, non-covalent exfoliation two different conductive fillers, multi-walled carbon nanotubes (MWCNTs) or...

We report on two important advances in radical polymerization with reversible addition–fragmentation chain transfer (RAFT polymerization). (1) Electrochemically initiated emulsion RAFT (eRAFT) provides rapid of styrene at ambient temperature. The electrolytes and mediators required for eRAFT are located the aqueous continuous phase separate from low-molar-mass-dispersity macroRAFT agent mediato...

Front Cover: In article number 2100336 by Akikazu Matsumoto and co-workers, RAFT polymerization of the BOC-protected 2-hydroxyethyl methacrylate was carried out to control molecular weight, polydispersity, chain-end groups, sequence structure block copolymers. The hydroxy-containing polymers produced acid-catalyzed deprotection were converted precursors for a thermally curing polymer network sy...

Diblock copolymers consisting of a hydrophilic poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC) block and either a cationic or anionic block were prepared from (3-(methacrylamido)propyl)trimethylammonium chloride (MAPTAC) or sodium 2-(acrylamido)-2methylpropanesulfonate (AMPS). Polymers were synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerization us...

Poly(N-isopropylacrylamide) with two chain lengths (MW: ca. 5000, and ca. 20 000 g mol ) was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization, using 2-dodecylsulfanylthiocarbonylsulfanyl-2-methyl propionic acid as the chain transfer agent. The derivatization of terminal dodecyl groups to maleimide groups was performed through the reduction of terminal trithi...

Various carboxylic acid-functionalized poly( N , N -dimethylacrylamide) (PDMAC) macromolecular chain transfer agents (macro-CTAs) were chain-extended with diacetone acrylamide (DAAM) by reversible addition-fragmentation chain transfer (RAFT) aqueous dispersion polymerization at 70 °C and 20% w/w solids to produce a series of PDMAC-PDAAM diblock copolymer nano-objects via polymerization-induced ...