Sun Ben-hui, Jin Ri-guang. CHARACTERIZATION OF LONG-CHAIN BRANCHING IN HIGH CIS-1,4 POLYBUTADIENE BY GPC-INTRINSIC VISCOSITIES OF POLYMER FRACTIONS. [J]. Acta Polymerica Sinica (5):335-341(1983)
DOI:
Sun Ben-hui, Jin Ri-guang. CHARACTERIZATION OF LONG-CHAIN BRANCHING IN HIGH CIS-1,4 POLYBUTADIENE BY GPC-INTRINSIC VISCOSITIES OF POLYMER FRACTIONS. [J]. Acta Polymerica Sinica (5):335-341(1983)DOI:
CHARACTERIZATION OF LONG-CHAIN BRANCHING IN HIGH CIS-1,4 POLYBUTADIENE BY GPC-INTRINSIC VISCOSITIES OF POLYMER FRACTIONS
a method was developed for the determination of long-chain branching in polymers by GPC-intrinsic viscosities of polymer fractions. In this method
gi
λi
Gimi
the weight percentage of polymer that is branched
etc. were used to express the distribution
degree and content of branching in polymers. Some relations between molecular weight polydispersity and branching polydisper-sity were disscussed. It was concluded that this method can be used for comparsing of long-chain branchins in Nicked-based cis-polybutadiene more reasonably and comprehensively.