Citation: YANG Yuwei, TANG Xueming. STUDY ON SYNTHESIS OF HIGH VINYL POLYBUTADIENE WITH TETRAVALENT MOLYBDENUM CATALYST SYSTEM[J]. Chinese Journal of Polymer Science, ;1986, 4(2): 200-206. shu

STUDY ON SYNTHESIS OF HIGH VINYL POLYBUTADIENE WITH TETRAVALENT MOLYBDENUM CATALYST SYSTEM

YANG Yuwei ,
TANG Xueming

Received Date: 26 June 1985

In this paper the catalytic behaviour of tetravalent molybdenum catalyst system in polymeriza-tion of butadiene is dealt with. The effects of the variety of apions combined with molybdenumatom, the pattern of the substituent R in (i-Bu)2AlOR and the polymerization conditions on thebutadiene conversion, the molecular weight and its distribution and the microstructure of the polymeralso are studied. It has been found that the catalyst system is significantly active when anions com-bined with the molybdenum atom are acetoxy(CH3COO-) or ethoxy (C2H5O-).Obviously,the variety of substituent R in (i-Bu)2 AlOR has a great influence on the catalytic activity.The catalyst system is inactive if the R group is-COR'(R'is alkyl or aromatic group) or alkyl,whereas the activity of the catalyst system increases if the R group is phenyl or tolyl.With the rise of polymerization temperature the polymer molecular weight decreases,the distribution index of molecular weight increases and the content of 1,2-unit in polybutadiene reduces.
1. [1]
  Yiwen Xu , Chaozheng He , Chenxu Zhao , Ling Fu . Single-atom Ti doping on S-vacancy two-dimensional CrS₂ as a catalyst for ammonia synthesis: A DFT study. Chinese Chemical Letters, 2025, 36(4): 109797-. doi: 10.1016/j.cclet.2024.109797
2. [2]
  Cong-Bin Ji , Ding-Xiong Xie , Mei Chen , Ye-Ying Lan , Bao-Hua Zhang , Ji-Ying Yang , Zheng-Hui Kang , Shu-Jie Chen , Yu-Wei Zhang , Yun-Lin Liu . Green synthesis of 2-trifluoromethylquinoline skeletons via organocatalytic N-[(α-trifluoromethyl)vinyl]isatins CN bond activation. Chinese Chemical Letters, 2025, 36(7): 110598-. doi: 10.1016/j.cclet.2024.110598
3. [3]
  Wen-Jing Li , Jun-Bo Wang , Yu-Heng Liu , Mo Zhang , Zhan-Hui Zhang . Molybdenum-doped carbon nitride as an efficient heterogeneous catalyst for direct amination of nitroarenes with arylboronic acids. Chinese Chemical Letters, 2025, 36(3): 110001-. doi: 10.1016/j.cclet.2024.110001
4. [4]
  Qijun Tang , Wenguang Tu , Yong Zhou , Zhigang Zou . High efficiency and selectivity catalyst for photocatalytic oxidative coupling of methane. Chinese Journal of Structural Chemistry, 2023, 42(12): 100170-100170. doi: 10.1016/j.cjsc.2023.100170
5. [5]
  Shuying Li , Weiwei ZhuGe , Xuan Sun , Chongzhen Sun , Zhaojun Liu , Chenghe Xiong , Min Xiao , Guofeng Gu . Convergent synthesis and immunological study of oligosaccharide derivatives related to galactomannan from Antrodia cinnamomea. Chinese Chemical Letters, 2024, 35(5): 109089-. doi: 10.1016/j.cclet.2023.109089
6. [6]
  Zhilong Xie , Guohui Zhang , Ya Meng , Yefei Tong , Jian Deng , Honghui Li , Qingqing Ma , Shisong Han , Wenjun Ni . A natural nano-platform: Advances in drug delivery system with recombinant high-density lipoprotein. Chinese Chemical Letters, 2024, 35(11): 109584-. doi: 10.1016/j.cclet.2024.109584
7. [7]
  Baokang Geng , Xiang Chu , Li Liu , Lingling Zhang , Shuaishuai Zhang , Xiao Wang , Shuyan Song , Hongjie Zhang . High-efficiency PdNi single-atom alloy catalyst toward cross-coupling reaction. Chinese Chemical Letters, 2024, 35(7): 108924-. doi: 10.1016/j.cclet.2023.108924
8. [8]
  Meng Wang , Yan Zhang , Yunbo Yu , Wenpo Shan , Hong He . High-temperature calcination dramatically promotes the activity of Cs/Co/Ce-Sn catalyst for soot oxidation. Chinese Chemical Letters, 2025, 36(1): 109928-. doi: 10.1016/j.cclet.2024.109928
9. [9]
  Runzi Cao , Heng Shao , Xinjie Wang , Jian Wang , Enxiang Shang , Yang Li . Photocatalytic production of high-value-added fuels from biodegradable PBAT by Nb₂O₅/GCN heterojunction catalyst: Performance and mechanism. Chinese Chemical Letters, 2025, 36(7): 111029-. doi: 10.1016/j.cclet.2025.111029
10. [10]
  Xiaochun Liu , Gaoyan Chen , Xiaodong Yue , Chaoyue Wang , Xue-Xin Zhang , Xuecheng Ran , Yingxiao Zong , Junke Wang , Xicun Wang . A novel N-stable Co₂P nano-catalyst for the synthesis of quinoxalines by annulation of alkynes and 1,2-diaminobenzenes. Chinese Chemical Letters, 2025, 36(8): 110707-. doi: 10.1016/j.cclet.2024.110707
11. [11]
  Guixu Pan , Zhiling Xia , Ning Wang , Hejia Sun , Zhaoqi Guo , Yunfeng Li , Xin Li . Preparation of high-efficient donor-π-acceptor system with crystalline g-C3N4 as charge transfer module for enhanced photocatalytic hydrogen evolution. Chinese Journal of Structural Chemistry, 2024, 43(12): 100463-100463. doi: 10.1016/j.cjsc.2024.100463
12. [12]
  Kun Wang , Tianxue Gong , Yaohuang Huang , Boyang Han , Hanxiao Yang , Pavlo O. Dral , Weiwei Fang . Bornylimidazo[1,5–a]pyridin-3-ylidene allylic Pd catalyst with optimal electronic and steric properties for synthesis of 3,3′-disubstituted oxindoles. Chinese Chemical Letters, 2025, 36(7): 110539-. doi: 10.1016/j.cclet.2024.110539
13. [13]
  Rui Cheng , Tingting Zhang , Xin Huang , Jian Yu . Facile synthesis of high-brightness green-emitting carbon dots with narrow bandwidth towards backlight display. Chinese Chemical Letters, 2024, 35(5): 108763-. doi: 10.1016/j.cclet.2023.108763
14. [14]
  Jie Yang , Xin-Yue Lou , Dihua Dai , Jingwei Shi , Ying-Wei Yang . Desymmetrized pillar[8]arenes: High-yield synthesis, functionalization, and host-guest chemistry. Chinese Chemical Letters, 2025, 36(1): 109818-. doi: 10.1016/j.cclet.2024.109818
15. [15]
  Genxiang Wang , Linfeng Fan , Peng Wang , Junfeng Wang , Fen Qiao , Zhenhai Wen . Efficient synthesis of nano high-entropy compounds for advanced oxygen evolution reaction. Chinese Chemical Letters, 2025, 36(4): 110498-. doi: 10.1016/j.cclet.2024.110498
16. [16]
  Xiaomeng Hu , Jie Yu , Lijie Sun , Linfeng Zhang , Wei Zhou , Dongpeng Yan , Xinrui Wang . Synthesis of an AVB@ZnTi-LDH composite with synergistically enhance UV blocking activity and high stability for potential application in sunscreen formulations. Chinese Chemical Letters, 2024, 35(11): 109466-. doi: 10.1016/j.cclet.2023.109466
17. [17]
  Lanfang Wang , Jiangnan Lv , Yujia Li , Yanqing Hao , Wenjiao Liu , Hui Zhang , Xiaohong Xu . One-step synthesis of nanowoven ball-like NiS-WS₂ for high-efficiency hydrogen evolution. Chinese Chemical Letters, 2025, 36(1): 109597-. doi: 10.1016/j.cclet.2024.109597
18. [18]
  Ruofan Yin , Zhaoxin Guo , Rui Liu , Xian-Sen Tao . Ultrafast synthesis of Na₃V₂(PO₄)₃ cathode for high performance sodium-ion batteries. Chinese Chemical Letters, 2025, 36(2): 109643-. doi: 10.1016/j.cclet.2024.109643
19. [19]
  Qiuting Zhang , Fan Wu , Jin Liu , Hang Su , Yanhui Zhong , Zian Lin . Facile synthesis of single-crystal 3D covalent organic frameworks as stationary phases for high-performance liquid chromatographic separation. Chinese Chemical Letters, 2025, 36(8): 110649-. doi: 10.1016/j.cclet.2024.110649
20. [20]
  Yiming Guo , Zhouhong Yu , Bin He , Pengzuo Chen . Metallic cobalt mediated molybdenum nitride for efficient glycerol upgrading with water electrolysis. Chinese Chemical Letters, 2025, 36(9): 111010-. doi: 10.1016/j.cclet.2025.111010

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(853)
HTML views(5)

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