Title of article :
Anomalous behaviour of ultrahigh molecular weight poly(methyl methacrylate) in the converging and shear flows
Tatiana Budtova، نويسنده , , Nina Belʹnikevich، نويسنده , , Zoolsho Zoolshoev، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
The shear and converging flows of ultrahigh molecular weight poly(methyl methacrylate) (PMMA) solutions is compared with the flow of polystyrene solutions of a similar molecular weight. Two processes occur during the flow of PMMA solution: (i) stereo-complexes that are formed in semi-dilute solutions are reversibly destroyed above a certain stress and/or at elevated temperature and (ii) polymer chains are irreversibly broken in strong shear and converging flows.
Journal title :
European Polymer Journal(EPJ)