2Mrkvickova L, Danhelka J , Pokomy S . Characterization of commercial polyvinyl butgral by gelpermeation chromatography[J]. J. App. Polym. Sci., 1984,(29):803- 805.
3Edward E, Remsen . Determination of molecular weight for polyvinyl butyral using size exclusion chromatography/low-angle laser light scattering(SEC/LALLS) in hexafluoroisopropanol[J]. J. App. Polym. Sci.,1991,42:503-510.