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Cortes Hernandez HF, Castro M. Effects of the charge on the structural, electronic and reactivity properties of 43 substituted N–Phenylmaleimides. A DFT study. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wu Z, Han B, Zhang C, Zhu D, Peng B, Gao L, Ding M, Yang Z. Organosoluble and optically active polyamides based on axially asymmetric 9,9′-spirobifluorene moieties. HIGH PERFORM POLYM 2014. [DOI: 10.1177/0954008314545521] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Optically active polyamides containing axially asymmetric 9,9′-spirobifluorene units in the main chain were synthesized for the first time by low-temperature solution polycondensation of ( R)-2,2′-bis(4-amino-2-trifluoromethylphenoxy)-9,9′-spirobifluorene with various diacyl chlorides. All these polymers were obtained in quantitative yields with inherent viscosities of 0.28–0.43 dL g−1. These polyamides were amorphous and readily soluble in many organic solvents such as N-methyl-2-pyrolidone, N, N-dimethylacetamide (DMAc), dimethyl sulfoxide, and tetrahydrofuran. The glass transition temperatures of these polyamides were recorded in the range of 199–261°C by differential scanning calorimetry, and the 10% weight loss temperatures were over 410°C both under nitrogen and in air atmospheres. The specific rotations of these chiral polyamides oscillated between 65.0° and 127.8° depending on the structures of the diacid chlorides. All the optically active polymers exhibited high chiral stability in solid state or in DMAc solvent at high temperature due to incorporation of chiral spirobifluorone unit in polymer backbones. The ultraviolet–visible and circular dichroism spectroscopic properties of these chiral polyamides in solutions were also studied.
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Affiliation(s)
- Zuolin Wu
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Baochun Han
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Chunhua Zhang
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Danyang Zhu
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Bo Peng
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Lianxun Gao
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Mengxian Ding
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
| | - Zhenghua Yang
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China
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Synthesis of polymethylacrylamide carrying R-phenylglycine pendant groups and effect of hydrogen bonds on main chain helicity. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2013.10.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jian-wei B, Xian-de S, Wen-bin L, Chun-hong Z, Huai X, Xiao-dong X. SYNTHESIS AND CHIRAL RECOGNITION ABILITY OF OPTICALLY ACTIVE POLY(METHACRYLAMIDE) WITH SIDE CHAINS. ACTA POLYM SIN 2013. [DOI: 10.3724/sp.j.1105.2013.12392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu Z, Han B, Zhang C, Zhu D, Gao L, Ding M, Yang Z. Novel soluble and optically active polyimides containing axially asymmetric 9,9′-spirobifluorene units: Synthesis, thermal, optical and chiral properties. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.10.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yang Y, Zhou Y, Ge J, Wang Y, Zhu Y. Preparation, characterization, and infrared emissivity property of optically active polyurethane/TiO2/SiO2 multilayered microspheres. J SOLID STATE CHEM 2011. [DOI: 10.1016/j.jssc.2011.07.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Yang Y, Zhou Y, Ge J, Wang Y, Chen X. Synthesis, characterization and infrared emissivity property of optically active polyurethane derived from tyrosine. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.06.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Affiliation(s)
- Timothy J. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
| | - Karen D. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
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Mallakpour S, Mirkarimi F. Synthesis and characterization of novel, optically active polyamides derived from S-valine natural amino acid and bulky anthracenic side chain. Amino Acids 2010; 39:1255-63. [DOI: 10.1007/s00726-010-0560-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Accepted: 03/08/2010] [Indexed: 11/30/2022]
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Tian Y, Lu W, Che Y, Shen LB, Jiang LM, Shen ZQ. Synthesis and characterization of macroporous silica modified with optically active poly[N-(oxazolinylphenyl)acrylamide] derivatives for potential application as chiral stationary phases. J Appl Polym Sci 2010. [DOI: 10.1002/app.31049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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