通过采用 XRD 测试聚合产物结晶性能,考察聚合产物结晶性对减阻率的影响,结果表明：少量的添加α-癸烯能够改变α-十二烯本体均聚的结晶性,从而达到提高本体均聚产物减阻率的目的.反应最佳工艺条件为单体配比C10︰C12=3︰117,主催化剂用量0.2 g,助催化剂用量1 mL,初始反应温度-2℃时,通过环道装置测试结果表明在此条件下减阻率可由本体均聚的34.60%提高至本体共聚的50.28%,减阻率相对提高了45.31%.添加少量α-癸烯破坏了聚合物的结晶结构,使聚合物达到较高的减阻率.%The crystalline property of polymers was tested by XRD, and the influence of the crystallinity of polymers on drag reduction was investigated. The results show that: adding a small amount of α-decene can change the crystallinity ofα-dodecene homopolymer to improve its drag reduction rate. The optimum technological conditions are as follows: the volume ratio of α-dodecen and α-octene 3∶117,the dosage of main catalyst 0.2 g ,the dosage of cocatalyst 1 mL and the initial reaction temperature -2 ℃. The drag reducing performance of the copolymers was evaluated by indoor loop apparatus, the drag reduction efficiency of the copolymer was 50.28%, the drag reduction efficiency of the homopolymer was 34.60%,the drag reduction rate was increased by 45.31%relatively. Adding a small amount ofα-decene destructed the crystalline structure of the polymer to improve drag reduction rate.
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