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- W2068731805 abstract "ABSTRACT Cardo polysulfonates (PS-1, PS-2, PS-4, PS-7, and PS-9) of 1,1′-bis(R,R′,4-hydroxy phenyl)cyclohexane (R=H, CH3,Cl and Br; and R′˭H, Cl and Br) with 4,4′-diphenyl ether disulfonyl chloride (DPESC) and 4,4′-diphenyl disulfonyl chloride (DPSC) have been synthesized by interfacial polycondensation of corresponding bisphenol (0.005 mol) and DPESC/DPSC (0.005 mol) by using water-1,2-dichloro-ethane/chloroform/dichloro methane (4:1 v/v) as an interphase, alkali (0.012–0.016 M) as an acid acceptor and cetyl trimethyl ammonium bromide (50 mg) as an emulsifier at 0°C for 3 hours. IR and NMR spectral data support the structures. The intrinsic viscosities of the said polymers are determined in different solvents at three different temperatures: 30°, 35°, and 40°C, and it is found that little solvent and temperature effect is observed on viscosities. All the polysulfonates possess good antibacterial activity against E. coli and S. aureus microbes and excellent resistance to hydrolytic attack against acids, alkalis and salt." @default.
- W2068731805 created "2016-06-24" @default.
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- W2068731805 date "2002-03-25" @default.
- W2068731805 modified "2023-10-14" @default.
- W2068731805 title "SYNTHESIS, BIOLOGICAL ACTIVITY, AND CHEMICAL RESISTANCE OF CARDO POLYSULFONATES BASED ON BISPHENOL-C AND ITS DERIVATIVES" @default.
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- W2068731805 doi "https://doi.org/10.1081/ma-120006524" @default.
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