Citation:
YANG Yanwu, WANG Dehua, QIU Jianqing, QIAN Baogong, WANG Hongzuo. STUDIES OF MAIN CHAIN DYNAMICS OF FLUORINE-CONTAINING IONOMERS BY CARBON-13 NUCLEAR MAGNETIC RELAXATION[J]. Chinese Journal of Polymer Science,
;1992, 10(2): 113-118.
-
The carbon-13 spin-spin relaxation times of fluorine-containing ionomers are measured and motional correlation times τo and τd are calculated by using VJGM model . The results show that the motions of polymer main chain in ionomers become more difficult with increasing of ionization degree and contents of functional group, and depend on the fine structures and stability of ionic microdomains.
-
-
-
-
[1]
Qian Wang , Yeping Bian , Gagan Dhawan , Wei Zhang , Alexander E. Sorochinsky , Ata Makarem , Vadim A. Soloshonok , Jianlin Han . FDA approved fluorine-containing drugs in 2023. Chinese Chemical Letters, 2024, 35(11): 109780-. doi: 10.1016/j.cclet.2024.109780
-
[2]
Kangren Kong , Zaiqiang Ma , Yu Yin , Zhaoming Liu , Ruikang Tang . Nuclear magnetic resonance-guided Monte Carlo/molecular dynamics structure inference for amorphous solids. Chinese Journal of Structural Chemistry, 2026, 45(3): 100773-100773. doi: 10.1016/j.cjsc.2025.100773
-
[3]
Jiajia Zhuang , Chunyu Cui , Changjiang Li , Gang Luo , Jiaping Tong , Di Sun . Counter-ion effect to the Ising-type magnetic anisotropy and magnetic relaxation in trigonal bipyramidal Co(Ⅱ) complexes. Chinese Chemical Letters, 2025, 36(7): 110091-. doi: 10.1016/j.cclet.2024.110091
-
[4]
Hongdao LI , Shengjian ZHANG , Hongmei DONG . Magnetic relaxation and luminescent behavior in nitronyl nitroxide-based annuluses of rare-earth ions. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 972-978. doi: 10.11862/CJIC.20230411
-
[5]
Zhao-Bo Hu , Ling-Ao Gui , Long-He Li , Tong-Tong Xiao , Adam T. Hand , Pagnareach Tin , Mykhaylo Ozerov , Yan Peng , Zhongwen Ouyang , Zhenxing Wang , Zi-Ling Xue , You Song . CoⅡ single-ion magnet and its multi-dimensional aggregations: Influence of the structural rigidity on magnetic relaxation process. Chinese Chemical Letters, 2025, 36(2): 109600-. doi: 10.1016/j.cclet.2024.109600
-
[6]
Boran Cheng , Lei Cao , Chen Li , Fang-Yi Huo , Qian-Fang Meng , Ganglin Tong , Xuan Wu , Lin-Lin Bu , Lang Rao , Shubin Wang . Fluorine-doped carbon quantum dots with deep-red emission for hypochlorite determination and cancer cell imaging. Chinese Chemical Letters, 2024, 35(6): 108969-. doi: 10.1016/j.cclet.2023.108969
-
[7]
Huiju Cao , Lei Shi . sp1-Hybridized linear and cyclic carbon chain. Chinese Chemical Letters, 2025, 36(4): 110466-. doi: 10.1016/j.cclet.2024.110466
-
[8]
Bo-Ran Chang , Lin Deng , Qing-Lian Wu , Wan-Qian Guo , Hui-Ying Xue . A review: Carbon-based materials as effective additives in anaerobic fermentation, focusing on microbial chain elongation and medium chain fatty acids production. Chinese Chemical Letters, 2025, 36(7): 110411-. doi: 10.1016/j.cclet.2024.110411
-
[9]
Peng Liu . Chemical recovery of waste sulfur-vulcanized carbon-chain rubbers by selective chain scission: Current status, challenges and perspectives. Chinese Chemical Letters, 2026, 37(6): 112086-. doi: 10.1016/j.cclet.2025.112086
-
[10]
Renming Liu , Ze Gao , Linglong Hu , Daming Yang , Ming Feng , Dan Luo . Hydrophobic protective layer with ultra-long carbon chain for high-performance aqueous zinc ion batteries. Chinese Chemical Letters, 2026, 37(2): 111491-. doi: 10.1016/j.cclet.2025.111491
-
[11]
Yuetong Gao , Tong Mu , Xinyue Hu , Yang Pang , Chengji Zhao . Facile synthesis of all-carbon fluorinated backbone polymers containing sulfide linkage as proton exchange membranes for fuel cells. Chinese Chemical Letters, 2025, 36(6): 110763-. doi: 10.1016/j.cclet.2024.110763
-
[12]
Shuangying Li , Qingxiang Zhou , Zhi Li , Menghua Liu , Yanhui Li . Sensitive measurement of silver ions in environmental water samples integrating magnetic ion-imprinted solid phase extraction and carbon dot fluorescent sensor. Chinese Chemical Letters, 2024, 35(5): 108693-. doi: 10.1016/j.cclet.2023.108693
-
[13]
Ping Liu , Fei Yu . Covalent organic framework ionomers for medium-temperature fuel cells. Chinese Journal of Structural Chemistry, 2025, 44(4): 100465-100465. doi: 10.1016/j.cjsc.2024.100465
-
[14]
Hai-Ling Wang , Zhong-Hong Zhu , Hua-Hong Zou . Structure and assembly mechanism of high-nuclear lanthanide-oxo clusters. Chinese Journal of Structural Chemistry, 2024, 43(9): 100372-100372. doi: 10.1016/j.cjsc.2024.100372
-
[15]
Ying Yao , Juan Tian , Ran Zhang , Ping Liu , Xiang Gao , Wenhu Zhou , Longlong Luo . Nanobody-based radiotracers in nuclear medicine: Advances, challenges, and future perspectives. Chinese Chemical Letters, 2026, 37(6): 111517-. doi: 10.1016/j.cclet.2025.111517
-
[16]
Li-Min Cui , Wei-Hui Fang , Jian Zhang . Polyoxometalates containing aluminum atoms. Chinese Chemical Letters, 2025, 36(10): 110386-. doi: 10.1016/j.cclet.2024.110386
-
[17]
Haibo Ye , Qianyu Li , Juan Li , Didi Li , Zhimin Ao . Review on the abiotic degradation of biodegradable plastic poly(butylene adipate-terephthalate): Mechanisms and main factors of the degradation. Chinese Chemical Letters, 2025, 36(1): 109861-. doi: 10.1016/j.cclet.2024.109861
-
[18]
Zijie Lin , Qing Li . Covalent organic framework ionomers enable synergistic efficient transport of protons and oxygen in medium-temperature proton exchange membrane fuel cells. Chinese Chemical Letters, 2026, 37(1): 111784-. doi: 10.1016/j.cclet.2025.111784
-
[19]
Yu-Yu Tan , Lin-Heng He , Wei-Min He . Copper-mediated assembly of SO2F group via radical fluorine-atom transfer strategy. Chinese Chemical Letters, 2024, 35(9): 109986-. doi: 10.1016/j.cclet.2024.109986
-
[20]
Lei Zhu , Hai-Ruo Li , Yi-Ning Mao , Ruiying Liu , Bo Zhang , Jing Chen , Wengui Xu , Libo Zhang , Cheng-Peng Li . A four-fold interpenetrated MOF for efficient perrhenate/pertechnetate removal from alkaline nuclear effluents. Chinese Chemical Letters, 2024, 35(12): 109921-. doi: 10.1016/j.cclet.2024.109921
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(1623)
- HTML views(52)
Login In
DownLoad: