Process of preparing linear polydivinylbenzene
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTeiji Tsuruta, Yoshiaki Nitadori
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AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTeiji Tsuruta, Yoshiaki Nitadori
Estimating the term…
A linear polydivinylbenzene having recurring units of Formula (A), ##STR1## and a number average molecular weight of about 500 to about 1,000,000; a linear copolymer having at least about 1% by weight of recurring units of Formula (A) as described above and at most about 99% by weight of recurring units of at least one of Formulae (B) and (C), ##STR2## wherein R.sub.1 and R.sub.2 may be the same or different and each represents a hydrogen atom, a C.sub.1-20 alkyl group, a C.sub.3-10 cycloalkyl group, a C.sub.7-12 arylalkyl group, a C.sub.3-8 alkenyl group, a C.sub.6-15 aryl group, a H.sub.2 N--CH.sub.2).sub.n group wherein n is an integer of 1 to 15 or a H--(NH--CH.sub.2 --CH.sub.2).sub.n group wherein m is an integer of 2 to 8; and R.sub.3 represents a hydrogen atom, a C.sub.1-12 alkyl group, a C.sub.3-10 cycloalkyl group, a C.sub.7-12 arylalkyl group or a C.sub.3-8 alkenyl group; and X is an acid radical, based on the total weight of the recurring units of Formulae (A) and (B) and/or (C), and a number average molecular weight of about 500 to about 1,000,000; and a process of preparing the linear polydivinylbenzene or the linear copolymer as described above.
A process of preparing a linear polydivinylbenzene having recurring units of Formula (A), ##STR22## and a number average molecular weight of about 500 to about 1,000,000, which comprises adding lithium diisopropylamide and divinylbenzene to an inert polar solvent in the presence of diisopropylamine.
Dependencies are inferred from the claim text.