화학공학소재연구정보센터
Journal of Applied Polymer Science, Vol.54, No.13, 2125-2134, 1994
Distributions of Functionality and of Molecular-Weights in an Hydroxyl-Terminated Polybutadiene by Dual-Detection Size-Exclusion Chromatography
The article deals with data treatment problems associated with the estimation (via dual-detection size exclusion chromatography) of the independent distributions of molecular weight and functionality in a derivatized hydroxyl-terminated polybutadiene. Calculations are based on an approach originally developed for linear copolymers and include corrections for (a) effect of functional groups on instantaneous mass and molecular weights, (b) dependence of refractive index with molecular weight, and (c) instrumental broadening. Compared to other more laborious analytical methods, the proposed technique is simple and provides accurate results.