Molecular Weight Distribution of Hyperbranched Polymers Generated by Self-Condensing Vinyl Polymerization in Presence of a Multifunctional Initiator
作者： Deyue Yan , Zhiping Zhou , Axel H. E. Müller
DOI: 10.1021/MA9716488
关键词:
摘要: The molecular weight distribution (MWD) is derived for polymers generated by self-condensing vinyl polymerization (SCVP) of a monomer having and an initiator group (“inimer”) in the presence multifunctional initiator. If added slowly to solution (semi-batch process), this leads hyperbranched with core. are mixed simultaneously (batch even at conversions as high 99%, total MWD consists which have grown via reactions between inimer molecules (i.e., normal SCVP process) those reacted Consequently, distribution, w(M), bimodal. However, z-distribution, z(M), equivalent “GPC distribution”, w(log M) vs log M, unimodal.
acs.org
harvard.edu
sci-hub.se 参考文章(10)
Scott G. Gaynor, Shane Edelman, Krzysztof Matyjaszewski, Synthesis of branched and hyperbranched polystyrenes Macromolecules. ,vol. 29, pp. 1079- 1081 ,(1996) , 10.1021/MA9513877
Craig J. Hawker, Jean M. J. Frechet, Robert B. Grubbs, Julian Dao, Preparation of Hyperbranched and Star Polymers by a "Living", Self-Condensing Free Radical Polymerization Journal of the American Chemical Society. ,vol. 117, pp. 10763- 10764 ,(1995) , 10.1021/JA00148A027
Axel H. E. Müller, Deyue Yan, Michael Wulkow, Molecular Parameters of Hyperbranched Polymers Made by Self-Condensing Vinyl Polymerization. 1. Molecular Weight Distribution Macromolecules. ,vol. 30, pp. 7015- 7023 ,(1997) , 10.1021/MA9619187
Kenkichi Sakamoto, Takuji Aimiya, Mitsuo Kira, Preparation of Hyperbranched Polymethacrylates by Self-Condensing Group Transfer Polymerization Chemistry Letters. ,vol. 1997, pp. 1245- 1246 ,(1997) , 10.1246/CL.1997.1245
Wolfgang Radke, Galina Litvinenko, Axel H. E. Müller, Effect of Core-Forming Molecules on Molecular Weight Distribution and Degree of Branching in the Synthesis of Hyperbranched Polymers Macromolecules. ,vol. 31, pp. 239- 248 ,(1998) , 10.1021/MA970952Y
Deyue Yan, Axel H. E. Müller, Krzysztof Matyjaszewski, Molecular Parameters of Hyperbranched Polymers Made by Self-Condensing Vinyl Polymerization. 2. Degree of Branching† Macromolecules. ,vol. 30, pp. 7024- 7033 ,(1997) , 10.1021/MA961919Z
J. M. J. Frechet, M. Henmi, I. Gitsov, S. Aoshima, M. R. Leduc, R. B. Grubbs, Self-condensing vinyl polymerization: an approach to dendritic materials. Science. ,vol. 269, pp. 1080- 1083 ,(1995) , 10.1126/SCIENCE.269.5227.1080
Deyue Yan, Zhiping Zhou, Hong Jiang, Guojian Wang, Kinetic model of star-branched polycondensation Macromolecular Theory and Simulations. ,vol. 7, pp. 13- 18 ,(1998) , 10.1002/(SICI)1521-3919(19980101)7:1<13::AID-MATS13>3.0.CO;2-A
Peter F. W. Simon, Wolfgang Radke, Axel H. E. Müller, Hyperbranched methacrylates by self-condensing group transfer polymerization Macromolecular Rapid Communications. ,vol. 18, pp. 865- 873 ,(1997) , 10.1002/MARC.1997.030180915
Paul J. Flory, Molecular Size Distribution in Three Dimensional Polymers. VI. Branched Polymers Containing A—R—Bf-1 Type Units Journal of the American Chemical Society. ,vol. 74, pp. 2718- 2723 ,(1952) , 10.1021/JA01131A008