1.
Preparation and Characterization of Sulfonated Poly(ether Sulfone) Using 4,4-Bis(4-Hydroxylphenyl)valeric Acid for Proton Exchange Membrane Fuel Cell Application
by Moon, Sang Ho
Materials science forum, 2009, Vol.620-622, p.73-76

2.
Preparation and characterization of sulfonated poiy(ether sulfone) using 4,4-bis(4-hydroxylphenyl) vaieric acid for proton exchange membrane fuel cell application
by Seo, Dong-Wan
Materials science forum, 2009, Vol.620-622, p.73-76

3.
Experimental Study on Thermal Characteristics of Environment-Friendly Blocks with Water-Absorbing Polymer
by Kim, Ree Ho
Materials science forum, 2010, Vol.658, p.260-263
