Atomistic simulation for coil-to-globule transition of poly(2-dimethylaminoethyl methacrylate).

Quaternary Ammonium Salts of Poly(N,N-dimethylaminoethyl methacrylate) as an Efficient Antibacterial Agent for Polylactide Textiles

Reentrant coil-to-globule-to-coil transition of a single linear homopolymer chain in a water/methanol mixture.

Both water and methanol are good solvents for poly( N-isopropylacrylamide) (PNIPAM) at room temperature, but strangely not a mixture of them. Using narrowly distributed linear PNIPAM chains (M(w) = 2.6x10(7) g/mol and M(w)/M(n)<1.1), we have, for the first time, observed a coil-to-globule-to-coil transition of a single PNIPAM chain when methanol was gradually added into water. This novel reentr...

Synthesis of Thermoresponsive Copolymers Composed of Poly(ethylene glycol) and Poly(N-isopropyl acrylamide) for Cell Encapsulation

Thermoresponsive copolymers of poly(Nisopropyl acrylamide) (PNIPAm) and poly(acrylamide) microgels copolymerized with poly(ethylene glycol)(PEG) chains were synthesized by free-radical photopolymerization. Poly(ethylene glycol) methyl ether methacrylate (PEGMA) macromonomers with varying number-average molecular weights were used (Mn = 300 and 1,000 g/mol). A simple microarray technique coupled...

Comparison of the Coil-to-Globule and the Globule-to-Coil Transitions of a Single Poly(N-isopropylacrylamide) Homopolymer Chain in Water

Using a newly prepared nearly monodisperse (Mw/Mn < 1.05) high molar mass (Mw ) 1.3 × 107 g/mol) poly(N-isopropylacrylamide) (PNIPAM) sample, we successfully, for the first time, made the conformation of individual PNIPAM chains change from a coil to a fully collapsed thermodynamically stable single chain globule and then back to a coil in an extremely dilute aqueous solution (∼6.7 × 10-7 g/mL)...

Globule-to-Coil Transition of a Single Homopolymer Chain in Solution

Using a nearly monodisperse high molar mass poly(N-isopropylacrylamide) (PNIPAM) sample, we successfully made the conformation change of individual PNIPAM chains from a coil to a fully collapsed stable single chain globule in an extremely dilute aqueous solution, which enabled us to study for the first time the globule-to-coil transition of a single homopolymer chain in solution. A comparison t...