發(fā)布時間：2018-10-24 16:30

【摘要】：將增黏用碳五石油樹脂(C_5)作為疏水單體,與丙烯酰胺(AM)聚合反應(yīng)得到AM/C_5二元共聚物,通過胺甲基化反應(yīng)制得疏水聚合物Mannich堿�？疾炝藛误w質(zhì)量比、引發(fā)劑用量、反應(yīng)溫度以及pH對聚合反應(yīng)的影響;討論了反應(yīng)時間、反應(yīng)溫度以及溶液pH對Mannich堿溶液表觀黏度的影響。采用FTIR、~1HNMR對產(chǎn)品進(jìn)行結(jié)構(gòu)表征,并對產(chǎn)品性能進(jìn)行分析。結(jié)果表明,最佳聚合條件為:反應(yīng)溫度40℃,pH=8,引發(fā)劑用量為0.5%(以單體質(zhì)量計(jì)),丙烯酰胺與碳五石油樹脂的質(zhì)量比為15∶1。當(dāng)反應(yīng)時間為5 h,溫度60~70℃,pH=9,丙烯酰胺、甲醛、二甲胺的物質(zhì)的量比為1∶1.1∶1.5,Mannich堿溶液黏度達(dá)到最佳(418 m Pa·s)。溫度為90℃時,Mannich堿的黏度保留率為43.3%;當(dāng)加入的NaCl、CaCl_2的質(zhì)量濃度均為2 000 mg/L時,其黏度保留率分別為32.8%、21.7%。該Mannich堿具有較好的增黏、耐溫及耐鹽性。
[Abstract]:AM/C_5 binary copolymers were prepared by copolymerization of C _ 5 petroleum resin (C _ S _ 5) with acrylamide (AM) as hydrophobic monomer, and hydrophobic polymer Mannich base was prepared by amine methylation reaction. The effects of mass ratio of monomer, amount of initiator, reaction temperature and pH on the polymerization were investigated, and the effects of reaction time, reaction temperature and solution pH on the apparent viscosity of Mannich base solution were discussed. The structure of the product was characterized by FTIR,~1HNMR, and the performance of the product was analyzed. The results show that the optimum polymerization conditions are as follows: the reaction temperature is 40 鈩，

本文編號：2291916