Synthesis and characterization of soluble poly(amideimide)s bearing triethylamine sulfonate groups as gas dehumidification membrane material


Autoria(s): Chen G; Zhang XS; Wang JH; Zhang SB
Data(s)

2007

Resumo

A series of soluble poly(amide-imide)s (PAIs) bearing triethylammonium sulfonate groups were synthesized directly using trimellitic anhydride chloride (TMAC) polycondensation with sulfonated diamine such as 2,2'-benzidinedisulfonic acid (BDSA), 4,4'-diaminodiphenyl ether-2,2'-disulfonic acid (ODADS), and nonsulfonated diamine 4,4-diaminodiphenyl methane in the presence of triethylamine. The resulting copolymers exhibited high molecular weights (high inherent viscosity), and a combination of desirable properties such as good solubility in dipolar aprotic solvents, film-forming capability, and good mechanical properties. Wide-angle X-ray diffraction revealed that the polymers were amorphous. These copolymers showed high permeability coefficients of water vapor because of the presence of the hydrophilic triethylammonium sulfonate groups. The water vapor permeability coefficients (P-w) and permselectivity coefficients of water vapor to nitrogen and methane [alpha(H2O/N-2) and (alpha(H2O/CH4)] Of the films increased with increasing the amount of the triethylammonium sulfonated groups.

Identificador

http://ir.ciac.jl.cn/handle/322003/13847

http://www.irgrid.ac.cn/handle/1471x/149615

Idioma(s)

英语

Fonte

Chen G;Zhang XS;Wang JH;Zhang SB.Synthesis and characterization of soluble poly(amideimide)s bearing triethylamine sulfonate groups as gas dehumidification membrane material,JOURNAL OF APPLIED POLYMER SCIENCE,2007 ,106(5):3179-3184

Palavras-Chave #AROMATIC TETRACARBOXYLIC DIANHYDRIDES #WATER-VAPOR #PERMEATION BEHAVIOR #RIGID-ROD #POLYIMIDES #POLYAMIDES #POLY(AMIDE-IMIDE)S #TRANSPORT #DIAMINES #AIR
Tipo

期刊论文