Home

Citation: Yang Yuhua, Yu Fusheng, Xu Guanfan. DYNAMIC MECHANICAL PROPERTIES OF Ln-PBI[J]. Chinese Journal of Applied Chemistry, ;1987, 4(4): 69-70. shu

DYNAMIC MECHANICAL PROPERTIES OF Ln-PBI

1.
Changchun Institute of Applied Chemistry, Acadmia Sinica

Corresponding author: Yang Yuhua,
Received Date: 17 June 1986
Available Online: 19 November 1986

The dynamic mechanical properties of butadiene isoprene copolymer prepared with lanthanide catalysts (Ln-PBI) have been studied using torsinal pendulum method. The content of cis-unit in Ln-FBI is high. The glass transition temperatures accord with those calculated from the FOX law for random copolymers. When the butadiene content in Ln-PBI is higher than 80wt% a new T_X transition was observed over the temperture range from 233K to 243K. The results of ¹³C-NMR and X-ray diffraction spectra indicated that both the length of butadiene segments and the crystallinity increase with increase of butadiene content when the later is above 80% in the copolymers. The existense of the T_X transition is related to the crystalization of long segments of butadiene in Ln-PBI.
1. [1]
  Mengfan Gong , Dongju Zhang . Estimating Delocalization Energies of 1,3-Butadiene and Benzene with Isodesmic Reactions: A Relatively Precise Approach. University Chemistry, 2026, 41(4): 457-463. doi: 10.12461/PKU.DXHX202505036
2. [2]
  Hongling Yuan , Jialin Xie , Jiawei Wang , Jixiang Zhao , Jiayan Liu , Qing Feng , Wei Qi , Min Liu . Cyclic Olefin Copolymer (COC): The Agile Vanguard in the Realm of Materials. University Chemistry, 2024, 39(7): 294-298. doi: 10.12461/PKU.DXHX202311041
3. [3]
  Zhuoming Liang , Ming Chen , Zhiwen Zheng , Kai Chen . Multidimensional Studies on Ketone-Enol Tautomerism of 1,3-Diketones By ¹H NMR. University Chemistry, 2024, 39(7): 361-367. doi: 10.3866/PKU.DXHX202311029
4. [4]
  Zifeng LIN , Shanshan GONG , Yang SHA , Zhenmin ZHANG , Changlin YU . Graphene quantum dots/SnS₂ composite nanosheets: Preparation and photocatalytic performance in reducing Cr(Ⅵ). Chinese Journal of Inorganic Chemistry, 2026, 42(5): 959-968. doi: 10.11862/CJIC.20250320
5. [5]
  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
6. [6]
  Zhihuan XU , Qing KANG , Yuzhen LONG , Qian YUAN , Cidong LIU , Xin LI , Genghuai TANG , Yuqing LIAO . Effect of graphene oxide concentration on the electrochemical properties of reduced graphene oxide/ZnS. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1329-1336. doi: 10.11862/CJIC.20230447
7. [7]
  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
8. [8]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
9. [9]
  Qingtao CHEN , Xiangdong SHI , Xianghai RAO , Liying JIANG , Chunxiao JIA , Fenghua CHEN . Catalytic and in situ surface-enhanced Raman scattering detection properties of graphene oxide/gold nanorod assembly. Chinese Journal of Inorganic Chemistry, 2026, 42(1): 120-128. doi: 10.11862/CJIC.20250091
10. [10]
  Rui Gao , Ying Zhou , Yifan Hu , Siyuan Chen , Shouhong Xu , Qianfu Luo , Wenqing Zhang . Design, Synthesis and Performance Experiment of Novel Photoswitchable Hybrid Tetraarylethenes. University Chemistry, 2024, 39(5): 125-133. doi: 10.3866/PKU.DXHX202310050
11. [11]
  Jiangting Li , Feng Ouyang , Qiang Wang , Shang Zhou , Xixu Bao , Yaqi Cheng , Yifei Yang , Pei Chen , Yipeng Chen , Jiye Zhang , Liang Wang , Haijian Zhong . Schottky junction phototherapy mediated by graphene quantum dots for superior antibacterial performance and rapid wound healing. Acta Physico-Chimica Sinica, 2026, 42(7): 100223-. doi: 10.1016/j.actphy.2025.100223
12. [12]
  Yifeng TAN , Ping CAO , Kai MA , Jingtong LI , Yuheng WANG . Synthesis of pentaerythritol tetra(2-ethylthylhexoate) catalyzed by h-MoO₃/SiO₂. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2155-2162. doi: 10.11862/CJIC.20240147
13. [13]
  Tianhao GE , Sirong LU , Zhiyin XIAO , Wei ZHONG . Synthesis of porphyrin-based ionic polymeric materials for catalytic application in CO₂ conversion. Chinese Journal of Inorganic Chemistry, 2026, 42(4): 722-736. doi: 10.11862/CJIC.20250312
14. [14]
  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
15. [15]
  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
16. [16]
  Jichao XU , Ming HU , Xichang CHEN , Chunhui WANG , Leichen WANG , Lingyi ZHOU , Xing HE , Xiamin CHENG , Su JING . Construction and hydrogen peroxide-activated chemodynamic activity of ferrocene?benzoselenadiazole conjugate. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1495-1504. doi: 10.11862/CJIC.20250144
17. [17]
  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
18. [18]
  Xiaomei Ai , Muran Lin , Jinlan Zeng , Jiwei Ren . 可见光催化绿色合成二肽化合物. University Chemistry, 2026, 41(5): 358-367. doi: 10.12461/PKU.DXHX202510007
19. [19]
  Xinxin YU , Yongxing LIU , Xiaohong YI , Miao CHANG , Fei WANG , Peng WANG , Chongchen WANG . Photocatalytic peroxydisulfate activation for degrading organic pollutants over the zero-valent iron recovered from subway tunnels. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 864-876. doi: 10.11862/CJIC.20240438
20. [20]
  Cuicui Yang , Bo Shang , Xiaohua Chen , Weiquan Tian . Understanding the Wave-Particle Duality and Quantization of Confined Particles Starting from Classic Mechanics. University Chemistry, 2025, 40(3): 408-414. doi: 10.12461/PKU.DXHX202407066

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(869)
HTML views(59)

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