Chain-Growth Polymerization (cont.). Ionic Polymerization: Anionic and Cationic Polymerization. MAP 11 Quiz.

12 abril 2022, 11:30 • Pedro Teixeira Gomes

Anionic Polymerization:

Characteristics (monomers prone to anionic polymerization). Anionic initiators (by anionic addition, by electron transfer). Mechanism and kinetics. Molecular weight control. Living Polymerization. Polymer chain ends functionalization. Telechelic polymerization. Stereochemistry of anionic polymerization. AB and ABA block copolymers (blend compatibilizers and thermoplastic elastomers (TPEs). Star-block copolymers. Ring opening polymerization of non-vinyl monomers (epoxides, cyclic trimer of formaldehyde, lactams, N-carboxyanhydrides, cyclic siloxanes). Polymeric architectures accessible by living polymerization.

Cationic Polymerization:

Characteristics (monomers that undergo cationic polymerization). Cationic initiators. Mechanism and kinetics (chain transfer and chain termination). Living cationic polymerization. Strereochemistry of cationic polymerization. Ring opening polymerization of non-vinyl monomers (epoxides, cyclic ethers, cyclic trimer of formaldehyde). Cationic copolymerization (Butyl Rubber). Commercially important polymers prepared by ionic polymerization.

MAP11 Quiz.