Open AccessDendritic aromatic polyamides and polyimides
Author(s) -
Jikei Mitsutoshi,
Kakimoto Masaaki
Publication year - 2004
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/pola.20018
Subject(s) - monomer , polyamide , dendrimer , branching (polymer chemistry) , condensation polymer , polymer chemistry , copolymer , polymerization , materials science , chemistry , polymer , organic chemistry
The syntheses and properties of dendritic and hyperbranched aromatic polyamides and polyimides are reviewed. In addition to conventional stepwise reactions for dendrimer synthesis, an orthogonal/double‐stage convergent approach and dendrimer syntheses with unprotected building blocks are described as new synthetic strategies for dendritic polyamides. Hyperbranched polyamides and polyimides composed of various repeating units are presented. Besides the self‐polycondensation of AB 2 ‐type monomers, new polymerization systems with AB 4 , AB 8 , A 2 + B 3 , and A 2 + BB′ 2 monomers have been developed for hyperbranched polyamides and polyimides. The copolymerization of AB 2 and AB monomers is discussed separately with respect to the effects of branching units on the properties. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 1293–1309, 2004