Login In
Citation:
Jun-fang Li, Shi-zhong Luo, Wei-dong He, Guang-zhao Zhang. THE ASSOCIATION OF LIVING POLYSTYRYLLITHIUM IN BENZENE[J]. Chinese Journal of Polymer Science,
;2009, 27(3): 407-414.
-
The effects of the chain length, active end group and concentration on the association of living polystyryllithium (PS-Li+) chains in benzene were examined by a combination of static and dynamic laser light scattering in a cuvette equipped with a high-vacuum stopcock. The results show that long PS-Li+ chains (Mw 1 × 104) usually form dimers in the solution. In contrast, shorter PS-Li+ chains exhibit two relaxation modes, where the fast mode is related to the translational diffusion of the living chain dimers. The end capping of the living chain with bulky 1,1-diphenylethene (DPE) leads to an intensity increase of the slow mode, indicating that the slow mode is not due to the chain aggregates but to temporal aggregates or long-range density fluctuation induced by weak electrostatic dipole-dipole interaction between ionic pairs at the chain ends.
-
-
-
-
[1]
Caihong Mao , Yanfeng He , Xiaohan Wang , Yan Cai , Xiaobo Hu . Synthesis and molecular recognition characteristics of a tetrapodal benzene cage. Chinese Chemical Letters, 2024, 35(8): 109362-. doi: 10.1016/j.cclet.2023.109362
-
[2]
Wenyi Mei , Lijuan Xie , Xiaodong Zhang , Cunjian Shi , Fengzhi Wang , Qiqi Fu , Zhenjiang Zhao , Honglin Li , Yufang Xu , Zhuo Chen . Design, synthesis and biological evaluation of fluorescent derivatives of ursolic acid in living cells. Chinese Chemical Letters, 2024, 35(5): 108825-. doi: 10.1016/j.cclet.2023.108825
-
[3]
Yu Deng , Yan Liu , Yonghui Deng , Jinsheng Cheng , Yidong Zou , Wei Luo . In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series. Chinese Chemical Letters, 2024, 35(7): 108898-. doi: 10.1016/j.cclet.2023.108898
-
[4]
Yudi Cheng , Xiao Wang , Jiao Chen , Zihan Zhang , Jiadong Ou , Mengyao She , Fulin Chen , Jianli Li . A near-infrared fluorescent probe for visualizing transformation pathway of Cys/Hcy and H2S and its applications in living system. Chinese Chemical Letters, 2024, 35(5): 109156-. doi: 10.1016/j.cclet.2023.109156
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(514)
- HTML views(6)
DownLoad: