Polyamides containing arylene sulfone ether linkages

Abstract

Polyamides containing arylene sulfone ether linkages were synthesized from 4,4′‐[sulfonylbis(p‐phenyleneoxy)] dibenzoyl chloride (SPCI), 3,3′‐[sulfonylbis(p‐phenyleneoxy)] dibenzoyl chloride (SMCl), and arylene sulfone ether diamines (SED), by solution and interfacial polymerization techniques. In solution polymerization, the effect of various acid acceptors such as propylene oxide (PO), lithium chloride (LiCl)/lithium hydroxide (LiOH), and triethylamine (TEA) on molecular weight of the polyamides was studied. The effect of methyl substituted and unsubstituted aromatic sulfone ether diamines on molecular weight and thermal properties of polyamides was also studied. The polyamides prepared were characterized by solution viscosity, elemental analysis, thermal gravimetric analysis, differential scanning calorimetry, and x‐ray diffraction. Physical and thermal properties of polyamides prepared from SPCl and SED were compared with the polyamides prepared from SMCl and SED.

New types of heat-resistant, flame-retardant ferrocene-based polyamides with improved solubility

“…One of the main strategies in this filed is incorporation of flexible or kinked linkages, such as arylene ether into the polymer backbone [14][15][16]. We have also investigated the preparation of new polyamides with flexible linkages through design of novel monomers [17][18][19][20][21][22][23].…”

Preparation, morphology, and properties of polyurethane–urea elastomers derived from sulphone‐containing aromatic diamine

“…[7][8][9][10] Furthermore, they can maintain excellent physical, mechanical, and electrical properties over a wide temperature range. [11][12][13][14] In recent years, there is much literature about polyamide or polyimide containing sulfone groups, [15][16][17][18][19][20][21][22][23] whereas the studies on the modification of PUU or PU with sulfone have been less reported. Filip blended poly (ether sulfone) with PU elastomers.…”

Preparation and characterization of polysulfonamide statistical copolymers from three aromatic diamines

“…However, the copolymers with the incorporation of rigid linkages, e.g., PPTA, are often difficult to be dissolved in organic solvents [4][5] . To address this problem, aryl ether linkages could be introduced into the main chain of them [6][7] .…”