CAJ | 학술논문

采用本体聚合法,以TiCl_4/Mgcl_2-Al(i-Bu)_3为催化剂对1-辛烯/1-十二烯的长链α-烯烃进行共聚,考察不同的聚合条件对减阻率的影响,最终确定最佳工艺条件,结果表明,当n(Al)/n(Ti)=90、起始反应温度为-2℃、反应物总体积为600 mL、V(DDS)-0.3 mL、1-辛烯在反应物中体积分数为33%左右时,减阻率高达52.3%.通过凝胶色谱、~1H-NMR、IR等方法对聚合物进行表征,证明用该方法可以制得重均相对分子质量为6.58×10~6、数均相对分子质量为2.41×10~6、相对分子质量分布宽度指数为2.73的原油用聚合物减阻剂,聚合较完全.
채용본체취합법,이TiCl_4/Mgcl_2-Al(i-Bu)_3위최화제대1-신희/1-십이희적장련α-희경진행공취,고찰불동적취합조건대감조솔적영향,최종학정최가공예조건,결과표명,당n(Al)/n(Ti)=90、기시반응온도위-2℃、반응물총체적위600 mL、V(DDS)-0.3 mL、1-신희재반응물중체적분수위33%좌우시,감조솔고체52.3%.통과응효색보、~1H-NMR、IR등방법대취합물진행표정,증명용해방법가이제득중균상대분자질량위6.58×10~6、수균상대분자질량위2.41×10~6、상대분자질량분포관도지수위2.73적원유용취합물감조제,취합교완전.
High efficient drag reducing agent was synthesized by bulk polymerization using TiCl_4/MgCl_2-Al(i-Bu)_3 as catalyst and mixed 1-octene/1-dodecene long chain α-olefins as monomers.The effect of reaction conditions on the drag reducing efficiency of copolymer was investigated and optimum process parameters were obtained.The prepared copolymer was characterized by GPC,~1H-NMR,IR and its drag reducing performance was evaluated by a loop testing system.Test results showed that a polymer obtained at a 1-oetene volume ratio of 33% having high molecular weight(M_w=6.58×10~6,M_n=2.41×10~6,M_w/M_n=2.73)was well polymerized,and its drag reduction rate at an added dosage of 0.01 kg/m~3 with diesel fuel was up to 52.3%,which indicated that the obtained Dolymer could be used as drag reducing agent for crude oil.