Synthesis of novel mono-substituted polyacetylenes bearing functional urea groups in side chains

Deng, Jianping; Zhao, Weiguo; Yang, Wantai

doi:10.1016/j.reactfunctpolym.2006.12.009

Cited by 10 publications

(2 citation statements)

References 47 publications

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“…Considering the loss of the product during purification, it is believed that the yields of the copolymers were quantitative and the composition of the products were consistent with the corresponding monomer compositions, which were further confirmed by the calculated results of the composition test and the 1 H NMR spectra measurements [30,32], shown in Fig. 1.…”

Section: Synthesis and Characterization Of N-propargylamide Polymerssupporting

confidence: 65%

“…Based on previous studies [30,[32][33][34][35], a strong absorption peak observed at approximately 390 nm in the UV-Vis spectra of substituted polyacetylenes polymers indicates the presence of a helical conformation in the polymer main chains. On the other hand, when the polymers adopt random structures, absorption bands at approximately 320 nm, rather than 390 nm, can be seen.…”

Section: Synthesis and Characterization Of N-propargylamide Polymersmentioning

confidence: 77%

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Helical poly(N-propargylamide)s with functional catechol groups: Synthesis and adsorption of metal ions in aqueous solution

Li¹,

Yan²,

Luo³

et al. 2010

Reactive and Functional Polymers

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Section: Synthesis and Characterization Of N-propargylamide Polymerssupporting

confidence: 65%

Section: Synthesis and Characterization Of N-propargylamide Polymersmentioning

confidence: 77%

Helical poly(N-propargylamide)s with functional catechol groups: Synthesis and adsorption of metal ions in aqueous solution

Li¹,

Yan²,

Luo³

et al. 2010

Reactive and Functional Polymers

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A novel type of optically active helical polymers: Synthesis and characterization of poly(N‐propargylureas)

Deng

Luo

Zhao

et al. 2008

J. Polym. Sci. A Polym. Chem.

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This article presents two novel artificial helical polymers, substituted polyacetylenes with urea groups in side chains. Poly(4) and poly(5) can be obtained in high yields (≥97%) and with moderate molecular weights (11,000–14,000). Poly(4) contains chiral centers in side chains, and poly(5) is an achiral polymer. Both of the two polymers adopted helical structures under certain conditions. More interestingly, poly(4) exhibited large specific optical rotations, resulting from the predominant one‐handed screw sense. The helical conformation in poly(5) was stable against heat, while poly(4) underwent conformational transition from helix to random coil upon increasing temperature from 0 to 55 °C. Solvents had considerable influence on the stability of the helical conformation in poly(4). The screw sense adopted by the helices was also largely affected by the nature of the solvent. Poly(4‐co‐5)s formed helical conformation and showed large optical rotations, following the Sergeants and Soldiers rule. By comparing the present two polymers (with one NH groups) with the three polymers previously reported (with two NH groups in side chains), the nature of the hydrogen bonds formed between the neighboring urea groups played big roles in the formation of stable helical conformation. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 4112–4121, 2008

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Sulfonamides and carbamates of 3-fluoro-4-morpholinoaniline (linezolid intermediate): synthesis, antimicrobial activity and molecular docking study

et al. 2017

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Synthesis of novel mono-substituted polyacetylenes bearing functional urea groups in side chains

Cited by 10 publications

References 47 publications

Helical poly(N-propargylamide)s with functional catechol groups: Synthesis and adsorption of metal ions in aqueous solution

Helical poly(N-propargylamide)s with functional catechol groups: Synthesis and adsorption of metal ions in aqueous solution

A novel type of optically active helical polymers: Synthesis and characterization of poly(N‐propargylureas)

Sulfonamides and carbamates of 3-fluoro-4-morpholinoaniline (linezolid intermediate): synthesis, antimicrobial activity and molecular docking study

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