Studies on Acrylamide-Dicyanodiamide Macromer and Its Copolymer with Styrene (Ⅰ) ——The Synthesis and Characterization of Macromer and Its Copolymer

Abstract

Abstract: Acrylamide-dicyanodiamide macromer (M) is a condensation polymer of acrylamide, formaldehyde and dicyanodiamide with C＝C　as one of the end groups.The process of condensation was monitored by high-pressure liquid chromatography and C＝C double bond was identified by ¹H NMR.Molecular wight M_w of macromer was determined by SALLS method.Copolymer of the macromer with styrene P-M-St was prepared with AIBN as the initiator and DMSO as the solvent.The copolymer consists of hydrophobic groups along the main chain and the hydrophilic groups along the graft side chain.The graft copolymer was identified by GPC, IRspectrum and solubility-test.P-M-St with low content of styrene is water-soluble.Its charge density and degree of branching were determined by conductometric titration and its molecular weight M_w by using SALLS method.The viscosity behavior of P-M-St in MeOH/H₂O shows that the copolymer is a polyelectrolyte containing hydrophobic groups.

Key words: Styrene, Dicyanodiamide, Acrylamide, Macromer, Amphiphilic copolymer

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ZANG Qing-da, LI Zhuo-mei . Studies on Acrylamide-Dicyanodiamide Macromer and Its Copolymer with Styrene (Ⅰ) ——The Synthesis and Characterization of Macromer and Its Copolymer[J]. Chem. J. Chinese Universities, 1992, 13(5): 709.

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Studies on Acrylamide-Dicyanodiamide Macromer and Its Copolymer with Styrene (Ⅰ) ——The Synthesis and Characterization of Macromer and Its Copolymer

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