In the present paper are reported the OH…O out-of-plane bending band[γ(OH)] between 900—950 cm -1 of dimethylol propionic acid(DMPA), its dependence upon
C5 petroleum resins are polymers producedwith byproduct cracked C5 cuts in ethyleneproduction as raw materials through separa-tion and polymerization. They can
On March 27th,2009 Guizhou Wengfu Lantian Fluorine Chemical Co.,Ltd.started constructionof 10 000 t/a silica white project in Fuquan,Guizhou province.With a to
A series of GaN layers was grown on sapphire (0001) substrates under various growth conditions by means of the molecular beam epitaxy(MBE) method, the optical c