Home

Citation: JEN SHOU-CHING, LEE BIN-TSOI. PREPARATION OF C/S-1,4-POLYBUTADIENE WITH TITANIUMTETRAIODIDE-TRIISOBUTYL ALUMINIUMAS CATALYSTⅠ. THE ACTIVITY OF THE CATALYST AND THE PROPERTIESOF THE POLYMER[J]. Acta Polymerica Sinica, ;1963, 5(2): 65-72. shu

PREPARATION OF C/S-1,4-POLYBUTADIENE WITH TITANIUMTETRAIODIDE-TRIISOBUTYL ALUMINIUMAS CATALYSTⅠ. THE ACTIVITY OF THE CATALYST AND THE PROPERTIESOF THE POLYMER

Thd polymerization of butadiene in benzene in the presence of titanium tetraiodide triisobutyl aluminium catalyst has been studied．It is found that the activity of this catalytic system depends upon the Al／Ti ratio and the temperature of polymerization．For each specified amount of titanium tetraiodide used，there iS a“critical Al／Ti ratio” at which the catalytic system displays highest activity，below which it shows no activity， and above which its activity decreases gradually (Fig．2)．Since the rate of polymerization can be lowered by increasing the AI／Ti ratio without suppression of ultimate conversion(Fig．3)，the polymerization reaction may be controlled with Al／Ti ratio to avoid“heat build—up”in the reaction mixture(Fig．4)．The advantage of this catalytic system is that whatever be the composition of the catalyst(e．g．Al／Ti)and the condition of polymerization (e．g．temperature)， no gel formation OCCURS and the cis-1，4-content of the polymer obtained always exceeds 90％ (Table 2)．The molecular weight(expressed as [n]) of the polymer depends upon two important factors，the amount of titanium tetraiodide used and the temperature of polymerization，with increasing either of which，the molecular weight decreases(Fig．5 and Fig．6)．The effect of AI／Ti on molecular weight is much less significant(Fig．6)． The molecular weight distribution of the polymer obtained with this catalyst is very narrow(Fig．7)．Therefore，it is presumed that the active sites may be of similar type，although the catalytic system itself is heterogeneous in character．
1. [1]
  Xiao SANG , Qi LIU , Jianping LANG . Synthesis, structure, and fluorescence properties of Zn(Ⅱ) coordination polymers containing tetra-alkenylpyridine ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2124-2132. doi: 10.11862/CJIC.20240158
2. [2]
  Junjie Zhang , Yue Wang , Qiuhan Wu , Ruquan Shen , Han Liu , Xinhua Duan . Preparation and Selective Separation of Lightweight Magnetic Molecularly Imprinted Polymers for Trace Tetracycline Detection in Milk. University Chemistry, 2024, 39(5): 251-257. doi: 10.3866/PKU.DXHX202311084
3. [3]
  Hailang JIA , Yujie LU , Pengcheng JI . Preparation and properties of nitrogen and phosphorus co-doped graphene carbon aerogel supported ruthenium electrocatalyst for hydrogen evolution reaction. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2327-2336. doi: 10.11862/CJIC.20250021
4. [4]
  Ping ZHANG , Chenchen ZHAO , Xiaoyun CUI , Bing XIE , Yihan LIU , Haiyu LIN , Jiale ZHANG , Yu'nan CHEN . Preparation and adsorption-photocatalytic performance of ZnAl@layered double oxides. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1965-1974. doi: 10.11862/CJIC.20240014
5. [5]
  Hailang JIA , Pengcheng JI , Hongcheng LI . Preparation and performance of nickel doped ruthenium dioxide electrocatalyst for oxygen evolution. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1632-1640. doi: 10.11862/CJIC.20240398
6. [6]
  Jingzhao Cheng , Shiyu Gao , Bei Cheng , Kai Yang , Wang Wang , Shaowen Cao . Construction of 4-Amino-1H-imidazole-5-carbonitrile Modified Carbon Nitride-Based Donor-Acceptor Photocatalyst for Efficient Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2024, 40(11): 2406026-0. doi: 10.3866/PKU.WHXB202406026
7. [7]
  Wang Wang , Yucheng Liu , Shengli Chen . Use of NiFe Layered Double Hydroxide as Electrocatalyst in Oxygen Evolution Reaction: Catalytic Mechanisms, Electrode Design, and Durability. Acta Physico-Chimica Sinica, 2024, 40(2): 2303059-0. doi: 10.3866/PKU.WHXB202303059
8. [8]
  Shiqian WEI , Xinyu TIAN , Hong LIU , Maoxia CHEN , Fan TANG , Qiang FAN , Weifeng FAN , Yu HU . Oxygen reduction reaction/oxygen evolution reaction catalytic performances of different active sites on nitrogen-doped graphene loaded with iron single atoms. Chinese Journal of Inorganic Chemistry, 2025, 41(9): 1776-1788. doi: 10.11862/CJIC.20250102
9. [9]
  Yanan Liu , Yufei He , Dianqing Li . Preparation of Highly Dispersed LDHs-based Catalysts and Testing of Nitro Compound Reduction Performance: A Comprehensive Chemical Experiment for Research Transformation. University Chemistry, 2024, 39(8): 306-313. doi: 10.3866/PKU.DXHX202401081
10. [10]
  Zhanggui DUAN , Yi PEI , Shanshan ZHENG , Zhaoyang WANG , Yongguang WANG , Junjie WANG , Yang HU , Chunxin LÜ , Wei ZHONG . Preparation of UiO-66-NH₂ supported copper catalyst and its catalytic activity on alcohol oxidation. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 496-506. doi: 10.11862/CJIC.20230317
11. [11]
  Dan Li , Hui Xin , Xiaofeng Yi . Comprehensive Experimental Design on Ni-based Catalyst for Biofuel Production. University Chemistry, 2024, 39(8): 204-211. doi: 10.3866/PKU.DXHX202312046
12. [12]
  Xichen YAO , Shuxian WANG , Yun WANG , Cheng WANG , Chuang ZHANG . Oxygen reduction performance of self?supported Fe/N/C three-dimensional aerogel catalyst layers. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1387-1396. doi: 10.11862/CJIC.20240384
13. [13]
  Bao Jia , Yunzhe Ke , Shiyue Sun , Dongxue Yu , Ying Liu , Shuaishuai Ding . Innovative Experimental Teaching for the Preparation and Modification of Conductive Organic Polymer Thin Films in Undergraduate Courses. University Chemistry, 2024, 39(10): 271-282. doi: 10.12461/PKU.DXHX202404121
14. [14]
  Changqing MIAO , Fengjiao CHEN , Wenyu LI , Shujie WEI , Yuqing YAO , Keyi WANG , Ni WANG , Xiaoyan XIN , Ming FANG . Crystal structures, DNA action, and antibacterial activities of three tetranuclear lanthanide-based complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2455-2465. doi: 10.11862/CJIC.20240192
15. [15]
  Bing WEI , Jianfan ZHANG , Zhe CHEN . Research progress in fine tuning of bimetallic nanocatalysts for electrocatalytic carbon dioxide reduction. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 425-439. doi: 10.11862/CJIC.20240201
16. [16]
  Yuying JIANG , Jia LUO , Zhan GAO . Development status and prospects of solid oxide cell high entropy electrode catalysts. Chinese Journal of Inorganic Chemistry, 2025, 41(9): 1719-1730. doi: 10.11862/CJIC.20250124
17. [17]
  Wen YANG , Didi WANG , Ziyi HUANG , Yaping ZHOU , Yanyan FENG . La promoted hydrotalcite derived Ni-based catalysts: In situ preparation and CO₂ methanation performance. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 561-570. doi: 10.11862/CJIC.20230276
18. [18]
  Sumiya Akter Dristy , Md Ahasan Habib , Shusen Lin , Mehedi Hasan Joni , Rutuja Mandavkar , Young-Uk Chung , Md Najibullah , Jihoon Lee . Exploring Zn doped NiBP microspheres as efficient and stable electrocatalyst for industrial-scale water splitting. Acta Physico-Chimica Sinica, 2025, 41(7): 100079-0. doi: 10.1016/j.actphy.2025.100079
19. [19]
  Jiahui YU , Jixian DONG , Yutong ZHAO , Fuping ZHAO , Bo GE , Xipeng PU , Dafeng ZHANG . The morphology control and full-spectrum photodegradation tetracycline performance of microwave-hydrothermal synthesized BiVO₄:Yb³⁺,Er³⁺ photocatalyst. Journal of Fuel Chemistry and Technology, 2025, 53(3): 348-359. doi: 10.1016/S1872-5813(24)60514-1
20. [20]
  Linjie ZHU , Xufeng LIU . Synthesis, characterization and electrocatalytic hydrogen evolution of two di-iron complexes containing a phosphine ligand with a pendant amine. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 939-947. doi: 10.11862/CJIC.20240416

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(166)
HTML views(0)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return