Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Chemical structure of coupling agents: (A) (3-(2-aminoethylamino)propyl)-trimethoxysilane; (B) trimethoxy (2-(7-oxabicyclo(4.1.0)hept-3-yl)ethyl]silane; (C) tris(2-methoxyethoxy)(vinyl) silane; and (D) titanium (IV) (triethanolaminate)isopropoxide.
