Effects of laplace pressure on propagation and termination in aqueous heterogeneous free radical polymerization

被引：7
作者：
Zetterlund, PB
Okubo, M [1 ]
机构：
[1] Kobe Univ, Grad Sch Sci & Technol, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Dept Sci & Chem Engn, Fac Engn, Kobe, Hyogo 6578501, Japan
来源：
MACROMOLECULAR THEORY AND SIMULATIONS | 2006年 / 15卷 / 01期
关键词：
kinetics (polym.); Laplace pressure; miniemulsion; radical polymerization; termination;
D O I：
10.1002/mats.200500051
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The influence of the Laplace pressure in polymer emulsion particles during aqueous heterogeneous free radical polymerization on the polymerization kinetics has been investigated. Calculations were carried out based on experimentally reported pressure dependences of propagation and termination rate coefficients. The results suggest that in most cases the effects are not likely to be significant, although under conditions of very small particles (diameter < 20 nm) and high interfacial tensions effects of the order of a few percent on propagation (increase in rate) and termination (decrease in rate) were predicted.
引用
收藏
页码：40 / 45
页数：6
相关论文
共 40 条
  • [1] RAFT-polymerization of styrene up to high pressure: Rate enhancement and improved control
    Arita, T
    Buback, M
    Janssen, O
    Vana, P
    [J]. MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (15) : 1376 - 1381
  • [2] PROPAGATION RATE COEFFICIENTS FROM ELECTRON-SPIN-RESONANCE STUDIES OF THE EMULSION POLYMERIZATION OF METHYL-METHACRYLATE
    BALLARD, MJ
    GILBERT, RG
    NAPPER, DH
    POMERY, PJ
    OSULLIVAN, PW
    ODONNELL, JH
    [J]. MACROMOLECULES, 1986, 19 (05) : 1303 - 1308
  • [3] Critically evaluated termination rate coefficients for free-radical polymerization: Experimental methods
    Barner-Kowollik, C
    Buback, M
    Egorov, M
    Fukuda, T
    Goto, A
    Olaj, OF
    Russell, GT
    Vana, P
    Yamada, B
    Zetterlund, PB
    [J]. PROGRESS IN POLYMER SCIENCE, 2005, 30 (06) : 605 - 643
  • [4] Rate coefficients of free-radical polymerization deduced from pulsed laser experiments
    Beuermann, S
    Buback, M
    [J]. PROGRESS IN POLYMER SCIENCE, 2002, 27 (02) : 191 - 254
  • [5] VARIATION WITH PRESSURE OF THE PROPAGATION RATE COEFFICIENT IN FREE-RADICAL POLYMERIZATION OF METHYL-METHACRYLATE
    BEUERMANN, S
    BUBACK, M
    RUSSELL, GT
    [J]. MACROMOLECULAR RAPID COMMUNICATIONS, 1994, 15 (04) : 351 - 355
  • [6] Critically evaluated rate coefficients for free-radical polymerization .2. Propagation rate coefficients for methyl methacrylate
    Beuermann, S
    Buback, M
    Davis, TP
    Gilbert, RG
    Hutchinson, RA
    Olaj, OF
    Russell, GT
    Schweer, J
    vanHerk, AM
    [J]. MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (05) : 1545 - 1560
  • [7] Termination kinetics of free-radical polymerization of styrene over an extended temperature and pressure range
    Buback, M
    Kuchta, FD
    [J]. MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (05) : 1455 - 1480
  • [8] Buback M, 2000, MACROMOL CHEM PHYSIC, V201, P464, DOI 10.1002/(SICI)1521-3935(20000201)201:4<464::AID-MACP464>3.0.CO
  • [9] 2-4
  • [10] CRITICALLY EVALUATED RATE COEFFICIENTS FOR FREE-RADICAL POLYMERIZATION .1. PROPAGATION RATE COEFFICIENT FOR STYRENE
    BUBACK, M
    GILBERT, RG
    HUTCHINSON, RA
    KLUMPERMAN, B
    KUCHTA, FD
    MANDERS, BG
    ODRISCOLL, KF
    RUSSELL, GT
    SCHWEER, J
    [J]. MACROMOLECULAR CHEMISTRY AND PHYSICS, 1995, 196 (10) : 3267 - 3280
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