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Ma Jingjing, Pan Hongbin, Huang Baotong. PREPARATION OF NORBORNENE GROUP-CAPPED POLYSTYRENE MACROMER[J]. Chinese Journal of Applied Chemistry,
;1986, 3(1): 60-62.
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Polystyrene macromer with a norbornene end group (PS-NB) was prepared by coupling polystyrene anion (PS-) with 5-bromomethylnorbornene (BrMNB) in a mixed solvent of cyclohexane and tetrahydrofuran (THF).Molecular structure of the macromer was characterized by 1H NMR,IR, and GPC methods. Investigation on the coupling reaction parameters showed that presence of polar solvent THF greatly improved coupling efficiency. Without additional separation procedure, pure PS-NB was able to be synthesized when volume fraction of THF was up to 10% and [BrMNB]/[FS-] ratio up to 4.
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