Citation: Rui-yuan Liu, Tong Zhang, Xiao-dong Yang, Yi-chen Yan, Jin-qing Qu. Synthesis, Chiroptical Properties of a Helical Polyacetylene Derivative Carrying Urea Moieties[J]. Chinese Journal of Polymer Science, ;2014, 32(7): 931-940. doi: 10.1007/s10118-014-1468-z shu

Synthesis, Chiroptical Properties of a Helical Polyacetylene Derivative Carrying Urea Moieties

1.
School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
2.
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

Received Date: 4 November 2013
Revised Date: 24 December 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21074073 and 51173050) and The Guangdong Provincial Engineering Research Center of Green Fine Chemical Technology, China.

A novel phenylacetylene derivative containing urea groups was synthesized and polymerized with a Rh catalyst to give the corresponding polymer, poly(1) with moderate number-average molecular weights. The poly(1) was soluble in toluene, CHCl3, CH2Cl2, THF, DMF, and DMSO, but insoluble in hexane, diethyl ether and MeOH. The specific rotation and circular dichroism (CD) spectroscopic studies revealed that poly(1) took predominantly one-handed helical structures. The presence of intramolecular hydrogen bonding was confirmed by liquid-state IR spectroscopy. The helicity of poly(1) could be tuned by temperature and anion. The helical conformation of the polymer was stable against Br- but susceptible to F-.
- Anion,
- Helix,
- Hydrogen bonding,
- Polyacetylene,
- Urea group
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1.
沈阳化工大学材料科学与工程学院沈阳 110142