화학공학소재연구정보센터
Journal of Colloid and Interface Science, Vol.185, No.1, 39-43, 1997
Thermogravimetric Studies of Silica Physically and Chemically-Modified with the Liquid-Crystal 4’-Cyano-4-Biphenyl(4-(4-Pentenyloxy))Benzoate
The interactions of the liquid crystal, 4’-cyano-4-biphenyl[4-(4-pentenyloxy)]benzoate (CBPB), with unmodified and chemically derivatized silica have been studied by high-resolution thermogravimetric analysis (HR-TGA). When CBPB is physically coated onto unmodified silica it undergoes a multistep thermal desorption process. However, when silica is chemically modified with CBPB and subsequently physically coated with CBPB it exhibits a more homogeneous thermal desorption profile which reflect differences in the LC/substrate interactions.