Structure of self‐assembled monolayers of semifluorinated alkanethiols on gold and silver substrates
作者:S. Frey、K. Heister、M. Zharnikov、M. Grunze、K. Tamada、R. Colorado、M. Graupe、O. E. Shmakova、T. R. Lee
DOI:10.1560/0k18-2rla-gaqd-nhru
日期:2000.10
(F10HnSH: n = 2, 11, and 17) on poly-crystalline Au and Ag were characterized by X-ray photoelectron spectroscopy, infrared reflection absorption spectroscopy, and near edge X-ray absorption fine structure spectroscopy. SFATs were found to form highly ordered and densely packed SAMs on both substrates. The molecules are strongly bonded to the substrates via their sulfur head groups, in the same manner as conventional
The invention provides novel polymers, including triblock polymers, as well as methods of preparing the polymers, and compositions that include such polymers. The polymers can include at least three blocks, the first block that includes poly(styrene), the second block that includes a random arrangement of poly(ethylene) and poly(butylene), and a third block that includes functionalized poly(isoprene). Units of the functionalized poly(isoprene) block can include hydroxyl groups and one or more ether linked side chains comprising R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, as defined herein, or a combination thereof. The polymers can be used to provide antifouling coatings, for example, for marine ship hulls.
US7887926B2
申请人:——
公开号:US7887926B2
公开(公告)日:2011-02-15
Synthesis of terminally perfluorinated long-chain alkanethiols, sulfides and disulfides from the corresponding halides
作者:C Naud、P Calas、H Blancou、A Commeyras
DOI:10.1016/s0022-1139(00)00215-3
日期:2000.7
prepared by various synthetic methods, starting from the corresponding iodides or bromides. Methods based on sodium hydrogen sulfide, commonly used to accomplish this conversion, treatment of the Bunte salt obtained fromsodium thiosulfate, the basic hydrolysis of isothiouronium salts, the hydrolysis under mild conditions of thiophosphorates formed fromsodium thiophosphate and the basic hydrolysis of thiol