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The synthesis of diene and of vinyl copolymers containing predetermined quantities of polynuclear hydrocarbon or heterocyclic adducts—VI. Copolymers of butadiene, acenaphthylene or phenanthrene, and a linking agent

✍ Scribed by F.J. Burgess; A.V. Cunliffe; D.H. Richards

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
421 KB
Volume
10
Category
Article
ISSN
0014-3057

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The synthesis of diene and vinyl copolym
The synthesis of diene and vinyl copolymers containing predetermined quantities of polynuclear hydrocarbon or heterocyclic adducts—VII: Copolymers formed from butadiene, a heterocyclic compound and some linking or terminating agents
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The reaction of butadiene (M) and a suitable heterocyclic molecule (A) (acridine, quinoline or puridine) with lithium metal in tetrahydrofuran (THF) produced polymeric adducts of structure -A--M,--A-where the negative charges are located on the nitrogen atoms. Similar products (monoor difunctional)

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The reaction in tetrahydrofuran between the disodium salt of anthracene (A) and alkyl dihalides (RX2) results in oligomeric products with a repeat unit --[A--R]--. The same reaction with the dilithium derivative is complicated by the high reactivity of this species toward solvent; oligomers with ---

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The synthesis of diene and of vinyl copolymers containing predetermined quantities of polynuclear hydrocarbon or heterocyclic adducts—V. Copolymers formed from styrene or α-methylstyrene, anthracene and alkyl dihalide
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When a tetrahydrofuran solution of styrene or ~-methylstyrene (M) and anthracene (A) is reacted with alkali metal, anionic species are produced which can be titrated with alkyl dibromides (RBr2) to produce copolymers. These copolymers have been analysed structurally by NMR spectroscopy and by a mode

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The reactions of alkali metal salts of anthracene with alkyl halides result in the formation of 9,10-dialkyl 9,10-dihydroanthracenes as the principal product, although appreciable quantities of other adducts, notably the 1,2-and 1,4-dialkyl compounds, are also formed. When the disodium salt is used