H-shape long-chain-branching structures are incorporated into isotactic polybutene-1 of both Ziegler–Natta and metallocene catalysts by means of so-called ω-alkenylmethyldichlorosilane copolymerization-hydrolysis chemistry. Thus-prepared polybutene-1 show significant overall acceleration of melt crystallization process. By shortening the II-I phase...

The formation of atactic poly(3-hydroxybutyrate) is achieved using very active aluminum phenoxoimino catalysts and benzyl alcohol (BnOH) or dimethylaminopyridine (DMAP) as initiators. The [AlXL2]/DMAP catalytic systems operate through two concomitant mechanisms depending on the ring cleaving species, DMAP or an in situ generated crotonate. Furthermore,...

In this study, a novel approach based on amphiphilic alternating copolymers for the synthesis of small-sized and compact single-chain nanoparticles (SCNPs) structures is proposed. Precise control over the average size of SCNPs is achieved within the range of 2.8 to 3.9 nm. These findings underscore a new synthetic strategy that enables enhanced manipulation...

Reversible addition–fragmentation chain transfer (RAFT) emulsion polymerization of methyl methacrylate (MMA) is conducted in water with a poly(methacrylic acid) (PMAA) macromolecular chain transfer agent. Self-stabilized PMAA-b-PMMA amphiphilic block copolymer particles are formed. An unusual evolution of particle morphologies is observed upon increasing...

Abstract Flexoelectricity is the universal electric polarization of dielectrics upon exertion of a non-uniform strain gradient. With the advancement of nano-technology and miniaturization of electronic devices, flexoelectricity holds the promise to address the power requirements for such device operation. The direct flexoelectric effect in liquid crystal...

This communication shows the synthesis and characterization of a quinoline-based COF containing bulky pendant phenyl rings as substituents, distinguished by an alternate AB stacking. This new material has been tested as fluorescent detector, observing selectivity for the detection of Zn2+. A thoughtful characterization has been accomplished to determine...