By G.R. Newkome
The sequence Advances in Dendritic Macromolecules goals to hide the substitute, in addition to chemical, facets of this increasing box: the chemistry to and supramolecular chemistry of dendritic or cascade supermolecular compounds. In bankruptcy 1 of this quantity, Hawker and Wooley delineate the convergent development method of dendrimers, then relate their 3-dimensional architectures to diversified block polymers. In bankruptcy 2, Moors and Vögtle describe Professor Vögtle's preliminary cascade molecules through the repetitive approach, then extend his unique strategies of its program by way of others, and finally delineate the synthesis of a brand new sequence of tosylamide cascades. additionally they reveal the application of his unique Michael addition/reduction strategy via its software to vary cores. bankruptcy three, composed by means of Professor Engel, describes ionic dendrimers which included an inner transition steel heart in addition to his paintings in accordance with ammonium and phosphonium facilities. In bankruptcy four, Mathias and Carothers evaluation fresh reports on silicon-based dendrimers and hyperbranched polymers. bankruptcy five, by way of Kim, describes the training and application of hyperbranched fragrant polymers. finally in bankruptcy 6, Escamilla experiences the ancient in addition to contemporary examples of ionic and nonionic bolaamphiphiles.
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Additional info for Advances in Dendritic Macromolecules, Volume 2
1992, 31, 1200. 37. Gitsov, L; Wooley, K. ; Hawker, C. ; Ivanova, P T; Frdchet, J. M. J. Macrvmolecules 1993,26,5621. 38. Gitsov, L; Frechet, J. M. J. Unpublished results. 39. Mourey, T. ; Turner, S. ; Frechet, J. M. ; Hawker, C. ; Wooley, K. L. Macromolecules 1992,25, 2401. The Convergent-Growth Approach 39 40. Lescanec, R. ; Muthukumar, M. Macromolecules 1990, 25, 2280. 41. Miller, T. ; Neenan, T. ; Bair, H. E. J. Am, Chem. Soc. 1992,114, 1018. 42. Wooley, K. ; Fr^chet, J. M. ; Hawker, C. J. Polymer J.
The JC-A isotherms showed a strong dependence on the molecular weight of the dendrimer and the compression rate. The latter is due to the characteristic ability of dendritic macromolecules to occlude solvent molecules. Vm. FUTURE DIRECTIONS The work presented above, coupled with the results from other authors, has demonstrated that the convergent-growth approach to dendritic macromolecules is a viable synthetic methodology. It is complementary to the divergent-growth approach, and both of these techniques have been used to prepare a wide variety of molecular architectures not previously synthesized.
W; Hawker, C. ; Frechet, J. M. ; Li, C,; Kao, M. J. Am. Chem. Soc. 1993, 775, 9836. 18. Tomalia, D. ; Hedstrand, D. ; Wilson, L. R. ; Wiley: New York, 1990; pp 69-75. 19. (a) Miller, T. ; Neenan, T. X. Chem. Mater 1990,2,349; (b) MUler, T. ; Kwock, E. W; Neenan, T. X. Macromolecules 1992, 25, 3143. 20. ; Moore, J. ; Aguirra, R. A. J. Am. Chem. Soc. ; Imai, Y Macromolecules 1992, 25, 3247. 21. Hawker, C. ; Frechet, J. M. J. Macromolecules 1990, 23,4726. 22. Wooley, K. ; Hawker, C. ; Frechet, J. M.