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4701868 
Journal Article 
Effects of Styrenic Comonomers in the Metallocene Catalyzed Terpolymerization 
Yoon, GL; Yang, DJ; Kim, HJ; Lee, JC; Park, NH; Kim, DH 
2013 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
25 
9 
5284-5288 
English 
WOS:000325087800133 
Various terpolymers consisting of ethylene, 1-hexene and styrenic monomer were synthesized using a metallocene catalyst and cocatalyst system. The styrenic monomer, as the third monomer, was styrene, p-methyl styrene or 4-tert-butyl styrene. The structures of the terpolymers were examined by C-13 NMR and H-1 NMR spectroscopy. The catalytic activity, polymer yield and molecular weights of the terpolymers were compared. The effects of each alkyl substituent of the styrenic monomer on the kinetics and thermal properties of the terpolymers, which were synthesized under identical polymerization conditions, were examined. The mechanical properties of the terpolymers were observed using a universal testing machine. The Shore A hardness, scratch resistance, permanent tensile strain, glass transition, crystallization temperature and the density of the terpolymers were also measured. 
Terpolymerzation; Ethylene; 1-Hexene; Styrenic monomer; Metallocene catalyst