Polydispersity index and molecular weight distributions of polymers (CROSBI ID 78887)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Rogošić, Marko ; Mencer, Helena Jasna ; Gomzi, Zoran
engleski
Polydispersity index and molecular weight distributions of polymers
The polydispersity index as a measure of the width of molecular weight distributions (MWD) is theoretically very important. However, considering the real polymer MWDs, its importance is partly lost. Consequently, several problems arise. The most common one is the misinterpretation of polydispersity index as a single and unique measure of MWD width. In this work, the origin and solutions of the problem are clearly described via several theoretical distribution functions, i.e. those which are most widely applied for the description of polymer MWDs. The conclusions are confirmed by the analysis of MWDs of real samples, namely styrene-acrylonitrile copolymers. In addition, a complete procedure for the MWD data analysis is presented. Such a procedure is necessary for the correct interpretation and comparison of different, experimentally obtained, molecular weight distributions of polymers.
polydispersity index; molecular weight distributions (MWD)
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
32 (11)
1996.
1337-1344
objavljeno
0014-3057
1873-1945
10.1016/s0014-3057(96)00091-2