作者: Nobukatsu Nemoto , Keiichiro Kakimoto , Takeshi Endo
DOI: 10.1002/POLA.10254
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摘要: This work deals with the cationic ring-opening polymerization of cyclic thiocarbonates a norbornene or norbornane moiety, that is, 5,5-(bicyclo[2.2.1]hept-2-ene-5,5-ylidene)-1,3-dioxane-2-thione (TC1) 5,5-(bicyclo[2.2.1]heptane-5,5-ylidene)-1,3-dioxane-2-thione (TC2), respectively. The reaction TC1 initiated by trifluoromethanesulfonic acid (TfOH), methyl trifluoromethanesulfonate (TfOMe), boron trifluoride etherate (BF3OEt2), triethyloxonium tetrafluoroborate (Et3OBF4) afforded unidentified products; however, underwent iodide as an initiator to afford polythiocarbonate because propagating end was stabilized covalent-bonding property. TC2 TfOH, TfOMe, BF3OEt2, Et3OBF4 good solubility in common organic solvents and narrow molecular weight distribution absence double-bond moiety. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Chem 40: 1698–1705,