CAJ | 학술논문

选用马来酸酐,苯乙烯,十六醇为原料,采用“先聚合,后酯化”的方法,合成了低温流动性改进剂:马来酸酐-苯乙烯-十六醇酯共聚物(SMAH).正交实验确定了最佳的制备条件,聚合:n(马来酸酐)/n (苯乙烯)=1:0.5、w(引发剂)=1.5%、聚合时间t=4 h、聚合温度T=85℃、w(溶剂)=156%.酯化:n(马来酸酐-苯乙烯聚合物)/n(十六醇)=1:1.5、w(催化剂)=1.5%、酯化时间t=3 h.IR结果表明:所制备产物的官能团结构与设计的目标产物吻合.将合成的产物按0.42%的剂量加入到俄罗斯原油提炼的0#柴油中,冷滤点可降低10℃.通过XRD和偏光显微镜观察结果表明:蜡晶的形态及结构均发生了变化.
선용마래산항,분을희,십륙순위원료,채용“선취합,후지화”적방법,합성료저온류동성개진제:마래산항-분을희-십륙순지공취물(SMAH).정교실험학정료최가적제비조건,취합:n(마래산항)/n (분을희)=1:0.5、w(인발제)=1.5%、취합시간t=4 h、취합온도T=85℃、w(용제)=156%.지화:n(마래산항-분을희취합물)/n(십륙순)=1:1.5、w(최화제)=1.5%、지화시간t=3 h.IR결과표명:소제비산물적관능단결구여설계적목표산물문합.장합성적산물안0.42%적제량가입도아라사원유제련적0#시유중,랭려점가강저10℃.통과XRD화편광현미경관찰결과표명:사정적형태급결구균발생료변화.
Using maleic anhydride, styrene and hexadecanol as raw materials, the diesel flow improver maleic anhydride-styrene-1-hexadecanol ester (SMAH) was synthesized via “first polymerization and then esterification”. Though orthogonal experiments, the best preparing conditions were determined as follows:during the polymerization, n(maleicanhydride)/n(styrene)=1:0.5, w(initiator)=1.5%, polymerizationtimet=4h, polymerization temperature T=85℃ ,w(xylene)=156%; During the esterification, n(maleicanhydride-styrene)/n(1-hexadecanol)=1:1.5,w(p-toluene sulphonic acid)=1.5%,esterification time t=3 h. The infrared analysis shows that the molecular functional group of prepared products matches with the target products. CFPP of the diesel oil can be most lowered by 10 ℃ when the dosage of the diesel flow improver is 0.42%in the diesel oil. The wax crystal was analyzed by XRD and polarizing microscope. The result shows that both structure and morphology of wax crystal have changed.