Hybrid organic-inorganic gels containing perfluoro-alkyl moieties

被引:36
作者
Ameduri, B [1 ]
Boutevin, B [1 ]
Moreau, JJE [1 ]
Moutaabbid, H [1 ]
Man, MWC [1 ]
机构
[1] ENSC Montpellier, UMR 5076, Lab Chim Organomet, Heterochim Mol & Macromol, F-34296 Montpellier 5, France
关键词
sol-gel; perfluoroalkyl silsesquioxanes; hybrid organic-inoganics; silica based materials;
D O I
10.1016/S0022-1139(00)00211-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Perfluoroalkyltrialkoxysilanes were prepared by hydrosilylation of the allylic or vinylic derivatives with trialkoxysilane or with trichlorosilane (followed by a quantitative methanolysis). The hydrolysis and polycondensation of these precursors were performed in the presence of tetrabutylammoniumfluoride (TBAF) as the catalyst, leading to a series of new polysilsesquioxanes, which were characterized by solid state C-13 and Si-29 CPMAS NMR. The porosity and surface area of these materials were determined by N-2 absorption experiments. Thermogravimetric analyses (TGA) were also performed. The surface properties of films prepared from these silsesquioxanes were studied by contact angle measurements. The hybrids having fluoroalkyl groups at the surface of the material showed a better thermostability and a higher hydrophobic and oleophobic character than their hydrocarbon analogues. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:185 / 194
页数:10
相关论文
共 50 条
  • [1] Ameduri B, 1999, J POLYM SCI POL CHEM, V37, P77
  • [2] Synthesis of hybrid fluorinated silicones .1. Influence of the spacer between the silicon atom and the fluorinated chain in the preparation and the thermal properties of hybrid homopolymers
    Ameduri, B
    Boutevin, B
    GuidaPietrasanta, F
    Manseri, A
    Ratsimihety, A
    Caporiccio, G
    [J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1996, 34 (15) : 3077 - 3090
  • [3] AMEDURI B, FLUOROPOLYMERS SYNTH, V2, P67
  • [4] [Anonymous], 1988, ACRYLATES POLYACRYLA
  • [5] SILSESQUIOXANES
    BANEY, RH
    ITOH, M
    SAKAKIBARA, A
    SUZUKI, T
    [J]. CHEMICAL REVIEWS, 1995, 95 (05) : 1409 - 1430
  • [6] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS
    BARRETT, EP
    JOYNER, LG
    HALENDA, PP
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) : 373 - 380
  • [7] BOILEAU S, 1987, POLYM MATER SCI ENG, V56, P384
  • [8] BONARDI C, Patent No. 426530
  • [9] FLUOROALKYL-SUBSTITUTED SILOXANES AS LIQUID REPELLENT FABRIC FINISHES
    BOVENKAMP, JW
    LACROIX, BV
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1981, 20 (01): : 130 - 133
  • [10] Brady Jr R. F., 1997, MODERN FLUOROPOLYMER, P127