Star-like poly (n-butyl acrylate)-b-poly (α-methylene-γ-butyrolactone) block copolymers for high temperature thermoplastic elastomers applications

UV‐Absorbent Lignin‐Based Multi‐Arm Star Thermoplastic Elastomers

“…Most commercial TPEs such as polystyrene‐ b ‐polybutadiene‐ b ‐polystyrene (SBS) and polystyrene‐ b ‐polyisoprene‐ b ‐polystyrene (SIS) triblock copolymers are prepared via ionic polymerization, which is known for its stringent conditions such as sensitivity to air, water, impurities, low polymerization temperature, and poor tolerance to functionalities and polarities, although recent controlled radical polymerizations, including reversible addition–fragmentation chain transfer (RAFT) polymerization, could achieve limited success in preparing these ABA triblock copolymers . There are a few other architectures designed for TPEs, including star block copolymers and multigraft copolymers . From the view of sustainability, a simple and economical approach is more favorable.…”

Tailoring of viscoelastic properties and light-induced actuation performance of triblock copolymer composites through surface modification of carbon nanotubes

“…Among the different RDRP techniques that are available, atom transfer radical polymerization (ATRP) is considered the most versatile because it enables good control over the polymerization of acrylic, methacrylic and styrene monomers [28e30]. ATRP has been successfully employed for the synthesis of a wide range of TPE based on acrylic block copolymers with linear [22,25], star-like [23,31,32], brush [33] or branched [34] architectures.…”

Thermoplastic Elastomers Based on Block, Graft, and Star Copolymers

“…As the temperature further raised up to 280°C, the PAN domain started to cross-link chemically, and the storage modulus of these materials dropped when the temperature was close to 300°C. With multifunctional ATRP initiator of 10 and 20 initiation sites, 10 arms and 20 arms PMBL/PnBA star polymers were prepared for hightemperature TPE applications [107]. The highest ultimate tensile stress achieved was 7.8 MPa.…”