Kinetic treatment for the copolycondensation of A2 and CB2 monomers with non-equal reactivity
作者： Zhiping Zhou , Deyue Yan
DOI: 10.1016/J.POLYMER.2011.09.025
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摘要: Abstract The kinetics of copolycondensation A 2 and CB monomers with non-equal reactivity was investigated in detail. analytical expressions the molecular size distribution function, average degree polymerization, polydispersity index products obtained were derived. gelation may take place range monomer feed ratio ( λ ) to from 3/4 3 if r C B group is 1. be reduced slightly / ≤ for enough high . High ratios are beneficial enhance conversion groups number polymerization at critical point gelation. weight but low should attribute reason that larger species formed reaction system, faster its growth. oligomer present point. Gelation avoided a suitable used. wide also improved excluding residual small species.
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sci-hub.se 参考文章(44)
Hyperbranched polymers : synthesis, properties, and applications John Wiley & Sons, Inc.. ,(2011) , 10.1002/9780470929001
Zhiping Zhou, Deyue Yan, Kinetic Theory of Hyperbranched Polymerization Hyperbranched Polymers. pp. 333- 367 ,(2011) , 10.1002/9780470929001.CH13
Andreas Reisch, Hartmut Komber, Brigitte Voit, Kinetic Analysis of Two Hyperbranched A2 + B3 Polycondensation Reactions by NMR Spectroscopy Macromolecules. ,vol. 40, pp. 6846- 6858 ,(2007) , 10.1021/MA070812G
S Unal, C Oguz, E Yilgor, M Gallivan, Timothy Edward Long, I Yilgor, None, Understanding the structure development in hyperbranched polymers prepared by oligomeric A2+B3 approach: comparison of experimental results and simulations Polymer. ,vol. 46, pp. 4533- 4543 ,(2005) , 10.1016/J.POLYMER.2005.03.073
Xin Li, Chun-Yan Hong, Cai-Yuan Pan, Preparation and characterization of hyperbranched polymer grafted mesoporous silica nanoparticles via self-condensing atom transfer radical vinyl polymerization Polymer. ,vol. 51, pp. 92- 99 ,(2010) , 10.1016/J.POLYMER.2009.11.020
Zhiping Zhou, Zhengwei Jia, Deyue Yan, Kinetic analysis of co-polycondensation of AB2 and AB type monomers in presence of multi-functional cores Polymer. ,vol. 51, pp. 2763- 2768 ,(2010) , 10.1016/J.POLYMER.2010.04.004
Zhiping Zhou, Zhengwei Jia, Deyue Yan, Theoretical investigation on the polyaddition of A2 and CB2 monomers with non-equal reactivity Polymer. ,vol. 50, pp. 5608- 5612 ,(2009) , 10.1016/J.POLYMER.2009.09.027
Walter H. Stockmayer, Theory of Molecular Size Distribution and Gel Formation in Branched‐Chain Polymers The Journal of Chemical Physics. ,vol. 11, pp. 45- 55 ,(1943) , 10.1063/1.1723803
Sunil S. Dhumal, A.K. Suresh, A comprehensive model for kinetics and development of film structure in interfacial polycondensation Polymer. ,vol. 50, pp. 5851- 5864 ,(2009) , 10.1016/J.POLYMER.2009.09.072
Zhirong Fan, Albena Lederer, Brigitte Voit, Synthesis and characterization of A2 + B3-type hyperbranched aromatic polyesters with phenolic end groups Polymer. ,vol. 50, pp. 3431- 3439 ,(2009) , 10.1016/J.POLYMER.2009.05.039