Polymerization of n-Octylallene with Rare Earth Catalyst Composed of Ln(P204)3/Al(i-Bu)3

被引：2
|
作者：
Ni Xufeng [1 ]
Zhu Weiwei [1 ]
Shen Zhiquan [1 ]
机构：
[1] Zhejiang Univ, MOE Key Lab Macromol Synth & Functionalizat, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
来源：
CHINESE JOURNAL OF CHEMISTRY | 2010年 / 28卷 / 10期
基金：
中国国家自然科学基金;
关键词：
n-octylallene; polymerization; rare earths; LIVING COORDINATION POLYMERIZATION; PI-ALLYLNICKEL CATALYST; EPSILON-CAPROLACTONE; PROPYLENE-OXIDE; COPOLYMERIZATION; DERIVATIVES; ALLENE;
D O I：
10.1002/cjoc.201090343
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polymerization of n-octylallene was successfully carried out using a conventional binary rare earth catalytic system composed of rare earth tris(2-ethylhexylphosphonate) (Ln(P-204)(3)) and tri-isobutyl aluminum (Al(i-Bu)(3)) for the first time. The effects of catalyst, solvent, reaction time and temperature on the polymerization of n-octylallene were studied. The resulting poly(n-octylallene) has weight-average molecular weight of 11000, molecular weight distribution of 1.4 and 96% yield under the moderate reaction conditions: [Al]/[Y] = 50 (molar ratio), [n-octylallene]/[Y] = 100 (molar ratio), polymerized at 80 degrees C for 20 h in bulk. The poly(n-octylallene) obtained consisted of 1,2- and 2,3-polymerized units, and was characterized by FT-IR, H-1 NMR and GPC. Further investigation shows that the polymerization of n-octylallene has some living polymerization characteristics, preparing the polymer with controlled molecular weight and narrower molecular weight distribution.
引用
收藏
页码：2055 / 2058
页数：4
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