LIU Sheng-ping, QIN Wen. EFFECTS OF MOLECULAR STRUCTURE PARAMETERS ON RHEOLOGICAL PROPERTIES OF CONCENTRATED SOLUTIONS OF CIS-POLYBUTADIENE RUBBER. [J]. Acta Polymerica Sinica (4):281-286(1987)
DOI:
LIU Sheng-ping, QIN Wen. EFFECTS OF MOLECULAR STRUCTURE PARAMETERS ON RHEOLOGICAL PROPERTIES OF CONCENTRATED SOLUTIONS OF CIS-POLYBUTADIENE RUBBER. [J]. Acta Polymerica Sinica (4):281-286(1987)DOI:
EFFECTS OF MOLECULAR STRUCTURE PARAMETERS ON RHEOLOGICAL PROPERTIES OF CONCENTRATED SOLUTIONS OF CIS-POLYBUTADIENE RUBBER
molecular weight distribution and branching factor of cis-polybutadiene-rubber (BR) were measured by GPC-Automatic viscometer method and the viscosities of concentrated solutions of BR were measured by coaxial cylinder viscometer and falling-ball method. The effects of molecular weight distribution and long-chain branching on non-Newtonian flow of concentrated solutions of BR were studied. A simple formula which describes theviscosity shear rate dependence of these solutions is obtained
and the effect of long-chain bran-ching on non-Newtonian flow of concentreated solutions of BR are discussed.