Anomalous viscosity behavior of rodlike
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H. Fu; H. Yun; T. K. Kwei; Y. Okamoto
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Article
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1998
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John Wiley and Sons
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English
β 125 KB
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Two stereoisomeric poly(2-benzoyl-1,4-phenylene)s were synthesized. Polymer I has exclusively a head-to-tail structure; however, polymer II contains both headto-head and head-to-tail units. The sulfonation reaction of polymers I and II was found to occur mainly on the meta position of the benzoyl gr