Naslov
Polydispersity Index and Molecular Weight Distributions of Polymers

Autori
Rogošić, Marko ; Mencer, Helena Jasna ; Gomzi, Zoran

Izvornik
European polymer journal (0014-3057) 32 (1996), 11; 1337-1344

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA