Mechanical and Viscoelastic Characterization of Hyperbranched Polyisobutylenes
2002 ◽
Vol 75
(5)
◽
pp. 853-864
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Keyword(s):
Abstract Structure-property relationships were investigated in hyperbranched polyisobutylenes, in comparison with commercial linear butyl rubber. The gel-free, soluble hyperbranched polyisobutylenes, synthesized by living carbocationic polymerization, had molecular weights, Mw≈400,000 to 1,000,000 g/mol, molecular weight distributions, MWD ≈1.2 to 2.6, and branching frequencies, BR ≈ 4 to 60. The mechanical and viscoelastic characterization of these polymers revealed interesting properties, including the characteristics of crosslinked rubbers.
1976 ◽
Vol 49
(2)
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pp. 303-319
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2006 ◽
Vol 11-12
◽
pp. 757-760
1989 ◽
Vol 47
(5)
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pp. 448-456
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1968 ◽
Vol 2
(5)
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pp. 1055-1063
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1996 ◽
Vol 1535
(1)
◽
pp. 10-14
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1981 ◽
Light-scattering Characterization of the Molecular Weight Distributions of Some Intractable Polymers
1997 ◽
Vol 8
(4)
◽
pp. 177-183
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Keyword(s):