One-step synthesis of poly(methacrylate)-b-polyester via “one organocatalyst, two polymerizations”

Abstract

By using triarylsulfonium hexafluorophosphate salt as an organocatalyst for both photo-controlled atom transfer radical polymerization (photo-ATRP) and ring-opening polymerization (ROP) at ambient temperature, well-defined poly(methyl methacrylate)-b-poly(trimethylene carbonate) block copolymer was...

Synthesis and properties of novel block-structured polyarylates containing fluorene: a two-step interface polymerization

“…On the basis of a crystalline prepolymer, a special monomer containing a pendant large side group is introduced to form a block structure of a crystalline chain-large side groupcrystalline chain in order to synthesize a block-type polyarylate containing a pendant large side group with a certain degree of crystallinity. [26][27][28] There have been few studies on the effect of controlling the introduction of large side groups on products capable of forming crystalline structural chain segments (prepolymers).…”

Lamp vs. Laser: A Visible Light Photoinitiator that Promotes Radical Polymerization at Low Intensities and Cationic Polymerization at High Intensities

“…To simplify such preparations, several research groups have begun to explore so-called "one-pot" methods for achieving controlled copolymerization. [17][18][19][20] These methods use mixtures of monomers that polymerize through distinct mechanisms (e.g. radical vs. cationic).…”

Lamp vs Laser: A Visible Light Photoinitiator That Promotes Radical Polymerization at Low Intensities and Cationic Polymerization at High Intensities

“…Traditionally the synthesis of such molecules required complex procedures, such as separation and purification of intermediate products and/or carefully managed sequential additions of monomers and initiators. To simplify such preparations, several research groups have begun to explore so-called “one-pot” methods for achieving controlled copolymerization. − These methods use mixtures of monomers that polymerize through distinct mechanisms (e.g., radical vs cationic). Control of the product’s structure and composition is realized by using an external stimulus to switch between mechanisms.…”