摘要
以硫氰酸盐、γ -氯丙基三乙氧基硅烷 [γ -Cl(CH2 ) 3 Si(C2 H5O) 3 ]为原料 ,合成了硅烷偶联剂硫氰基丙基三乙氧基硅烷。讨论了硫氰酸盐和溶剂的种类、反应温度 ,以及硫氰酸盐、γ -氯丙基三乙氧基硅烷、溶剂的配比对反应的影响。结果表明 ,以硫氰化钾 (KSCN)为原料、二甲基甲酰胺 (DMF)为溶剂 ,且KSCN与γ -Cl(CH2 ) 3 Si(C2 H5O) 3 、DMF的质量比为 1∶2 36∶2 4～ 2 5时 ,在 12 0～ 130℃回流反应 3h ,硫氰基丙基三乙氧基硅烷的收率可达 82 %左右 ;其应用性能与德国Degussa公司的Si- 2 6
Silicone coupling agent 3 thiocyanatopropyltri ethoxysilane was synthesized by taking rhodanate and γ chloropropyltriethoxysilane as raw material The effects of rhodanate and the type and reaction temperature of solvent,the proportion of rhodanate, γ chloropropyltriethoxysilane and solvent to the experiment were discussed The results showed that when taking KSCN as material,DMF as solvent,and the mass ratio among KSCN, γ Cl(CH 2) 3Si(C 2H 5O) 3 and DMF was 1∶2 36∶2 4～2 5,reflux reaction for 3 hours at 120～ 130 ℃ ,the yield of 3 thiocyanatopropyltriethoxy silane could reach about 82% Its performance in application was similar to Deguess Si 264
出处
《有机硅材料》
CAS
2003年第5期1-3,共3页
Silicone Material
