公开(公告)号：EP3205399A1

公开(公告)日：2017-08-16

申请号：EP16000330.7

申请日：2016-02-10

申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.

发明人： WOOH, Dr. Shangyuk ,  BUTT, Prof. Dr. Hans-Jürgen ,  VOLLMER, Dr. Doris

IPC分类号： B01J35/00 ,  B01J37/02 ,  C09D183/04

CPC分类号： C03C17/42 ,  B01J35/004 ,  B01J37/0209 ,  B01J37/0219 ,  B01J37/344 ,  B01J37/345 ,  C03C17/009 ,  C03C2217/445 ,  C03C2217/477 ,  C03C2217/76 ,  C09D183/04

摘要： The present invention relates to a method for grafting polysiloxanes on surfaces of photocatalytic metal oxides by light illumination which comprises at least the following steps:
a) providing a surface of a photocatalytically active metal oxide;
b) providing a polysiloxane or a mixture of polysiloxanes on the metal oxide surface;
c) irradiating the reaction mixture with light in a wavelength range from 180 nm to 550 nm for a sufficient time to generate reactive moieties in said polysiloxanes and to form covalent Si-O-Me (Me = metal) bonds between said reactive moieties of the polysiloxanes and the metal oxide surface;
d) optionally separating unreacted polysiloxane molecules from the polysiloxane-grafted metal oxide surface;
wherein no silane coupling agent or cross-linking agent needs to be present in the reaction mixture and/or participates in said grafting reaction.
A further aspect of the invention relates to the hydrophobic and photocatalytically active polysiloxane-grafted metal oxide surface obtainable by said method and to articles comprising said surface.

摘要翻译： 本发明涉及一种通过光照在光催化金属氧化物表面上接枝聚硅氧烷的方法，该方法至少包括以下步骤：a）提供光催化活性金属氧化物的表面; b）在金属氧化物表面上提供聚硅氧烷或聚硅氧烷混合物; c）用180nm至550nm的波长范围内的光照射反应混合物足够的时间，以在所述聚硅氧烷中产生反应性部分并在所述反应性部分之间形成共价Si-O-Me（Me = 聚硅氧烷和金属氧化物表面; d）任选从聚硅氧烷接枝的金属氧化物表面分离未反应的聚硅氧烷分子; 其中在反应混合物中不需要存在硅烷偶联剂或交联剂和/或参与所述接枝反应。 本发明的另一方面涉及通过所述方法可获得的疏水性和光催化活性聚硅氧烷接枝的金属氧化物表面以及包含所述表面的制品。