CAJ | 학술논문

采用分散聚合法以聚乙烯吡咯烷酮（PVP）为分散剂，无水乙醇为分散介质，合成了马来酸酐和甲基丙烯酸十八酯为单体的二元共聚物（PS M A‐a ），并对聚合物用苯胺进行酰胺化处理，得到降凝剂PS M A。采用傅里叶红外光谱和热失重对聚合物的结构和热稳定性进行表征。以大庆油田原油为实验对象，采用差示扫描热分析、石油凝点试验仪和石油产品运动黏度计对其进行了降凝降黏性能的研究。通过正交试验确定了最佳的单体配比、反应温度、反应时间和引发剂用量。实验表明，当降凝剂质量浓度为750 m g／L ，PV P用量为单体总质量分数的8％时，具有最佳的降凝降黏效果。
채용분산취합법이취을희필각완동（PVP）위분산제，무수을순위분산개질，합성료마래산항화갑기병희산십팔지위단체적이원공취물（PS M A‐a ），병대취합물용분알진행선알화처리，득도강응제PS M A。채용부리협홍외광보화열실중대취합물적결구화열은정성진행표정。이대경유전원유위실험대상，채용차시소묘열분석、석유응점시험의화석유산품운동점도계대기진행료강응강점성능적연구。통과정교시험학정료최가적단체배비、반응온도、반응시간화인발제용량。실험표명，당강응제질량농도위750 m g／L ，PV P용량위단체총질량분수적8％시，구유최가적강응강점효과。
The copolymer poly(PSMA‐a) composed of maleic anhydride and octadecyl methacrylate was synthesized with dispersion copolymerization method by using polyvinylpylrrolidone (PVP) as the dispersant and ethanol as the dispersion medium .Then the polymer was amidated by aminobenzene . The structure and thermal stability of the final polymer (PSMA) were characterized by Fourier trans‐form infrared spectroscopy (FTIR) and thermal weight loss (TGA) .In this thesis ,the crude oil from Daqing Oilfield station was taken as the experimental subject ,the property of pour point depression and viscosity reduction were measured by differential scanning calorimetry (DSC) ,oil solidifying point tester and viscosity tester .Then ,the best ratio of monomer ,reaction temperature ,reaction time and dosage of initiator was determined through the orthogonal test .The results of the experi‐ment indicated that the best pour point depression and viscosity reduction effect were achieved when the amount of the PPD taken in the experiment was 750 mg/L and the PVP dosage was 8% of total monomer mass .