Polyamides – Still Strong After Seventy Years

Abstract

Polyamides are a subject of enduring interest because of their variety, their complex internal structures, their commercial importance and versatility, and their various chemistries of preparation and of long‐term use. The present review introduces these polymers and then discusses the first of the above aspects, namely the variety of the polyamides. Here, together, the full family is presented, classified conveniently according to the types and combinations of monomers from which they are constructed. magnified image

2‐Methyltetrahydrofuran (2‐MeTHF): A Green Solvent for Pd−NHC‐Catalyzed Amide and Ester Suzuki‐Miyaura Cross‐Coupling by N−C/O−C Cleavage

“…[1][2][3] 2-MeTHF has been regarded as a very attractive solvent for organometallic reactions. [1][2][3] 2-MeTHF has been regarded as a very attractive solvent for organometallic reactions.…”

“…The central importance of the amide functional group in chemistry and biology [1,2] has spurred the development of an arsenal of catalytic methods for functional-ization of amides by transition-metal-catalyzed NÀ C (O) cleavage. [3][4][5][6][7][8] It is estimated that more than 75% of drug candidates feature an amide bond, with more than two-third of new FDA drug approvals containing an amide, thus presenting unique opportunites in the modification of pharmaceuticals.…”

Pinene: reichlich vorhandene und erneuerbare Bausteine für eine Vielzahl an nachhaltigen Polymeren

“…Basierend auf der zunehmenden Bedeutung von Polyamiden in vielen Branchen (Automobil, Gebrauchsgegenstände,B iomedizin) [89] trägt dieses Konzept somit in wichtiger Weise dazu bei, die Zugänge zu dieser wichtigen Polymerklasse zu erweitern. B. mit Polyethylenglycol (PEG)).…”

Functional Aromatic Polyamides

“…T g s were between 160 and 220 • C, and 10% mass loss temperatures were in the range of 400-505 • C in nitrogen atmosphere. These properties, derived from the noncoplanar CF 3 and S=O in the polymer chain, make these polyamides attractive for practical applications such as processable high-temperature-resistance polymers. …”