Enhanced Phase Transition in Poly(ethylene glycol) Grafted Butene-1 Copolymers

Utilizing 3-methyl-1-butene co-units to tailor phase transition behavior in butene-1 copolymers

“…In addition to external stimuli, the modification of the molecular structure is able to regulate phase transition. 15,32,[39][40][41][42][43][44][45][46] As early as the 1960s, Turner-Jones investigated the crystallization and phase transition behaviors of butene-1 copolymers by incorporating linear or branched α-olefins with various numbers of carbon atoms. It was demonstrated that for butene-1 copolymers, copolymerizing the linear α-olefin with more than five carbon atoms and branched co-monomers retarded the II-I phase transition.…”

“…15–25 Over the past decades, various methods have been reported to tailor the phase transition process. 15,25–46 Qiao et al systematically investigated the correlation between temperature and phase transition kinetics. Their results found that for the II–I phase transition, two necessary steps of nucleation and growth have optimal temperatures of −10 and 40 °C, respectively, which leads to the maximum transition rate at room temperature.…”