Combinatorial study of the mushroom-to-brush crossover in surface anchored polyacrylamide

被引:282
作者
Wu, T [1 ]
Efimenko, K [1 ]
Genzer, J [1 ]
机构
[1] N Carolina State Univ, Dept Chem Engn, Raleigh, NC 27695 USA
关键词
D O I
10.1021/ja027412n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present a method for fabricating anchored polymers with a gradual variation of grafting densities on solid substrates. The technique for generating such structures comprises (i) formation of a molecular gradient of polymerization initiator on the solid substrate and (ii) polymerization from the substrate-bound initiator centers ("grafting from"). We measure the mushroom-to-brush transition in grafted polyacrylamides and show that the mushroom and brush behavior can be described using existing scaling theories. Copyright © 2002 American Chemical Society.
引用
收藏
页码:9394 / 9395
页数:2
相关论文
共 17 条
  • [1] CHARACTERIZATION OF THE BRUSH REGIME FOR GRAFTED POLYMER LAYERS AT THE SOLID-LIQUID INTERFACE
    AUROY, P
    AUVRAY, L
    LEGER, L
    [J]. PHYSICAL REVIEW LETTERS, 1991, 66 (06) : 719 - 722
  • [2] HOW TO MAKE WATER RUN UPHILL
    CHAUDHURY, MK
    WHITESIDES, GM
    [J]. SCIENCE, 1992, 256 (5063) : 1539 - 1541
  • [3] Douglas J., 2001, ENCY MAT SCI TECHNOL, P7218
  • [4] Efimenko K, 2001, ADV MATER, V13, P1560, DOI 10.1002/1521-4095(200110)13:20<1560::AID-ADMA1560>3.0.CO
  • [5] 2-Z
  • [6] Fleer G., 1993, Polymers at interfaces
  • [7] Surface initiation of living radical polymerization for growth of tethered chains of low polydispersity
    Huang, X
    Wirth, MJ
    [J]. MACROMOLECULES, 1999, 32 (05) : 1694 - 1696
  • [8] Surface-confined living radical polymerization for coatings in capillary electrophoresis
    Huang, XY
    Doneski, LJ
    Wirth, MJ
    [J]. ANALYTICAL CHEMISTRY, 1998, 70 (19) : 4023 - 4029
  • [9] Surface-initiated polymerizations in aqueous media: Effect of initiator density
    Jones, DM
    Brown, AA
    Huck, WTS
    [J]. LANGMUIR, 2002, 18 (04) : 1265 - 1269
  • [10] Kent MS, 2000, MACROMOL RAPID COMM, V21, P243, DOI 10.1002/(SICI)1521-3927(20000301)21:6<243::AID-MARC243>3.0.CO