1
|
Laughlin BJ, Burdette MK, Powell CR, Levy BE, Tennyson AG, Smith RC. Donor-Acceptor 1,4-Fluorenylene Chromophores: Photophysics, Electrochemistry, and Synthesis through a Route for Asymmetric Chromophore Preparation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
Laughlin BJ, Baker WF, Duniho TL, El Homsi SJ, Tennyson AG, Smith RC. Synthesis, photophysical and electrochemical properties of conjugated polymers incorporating 9,9-dialkyl-1,4-fluorenylene units with thiophene, carbazole and triarylamine comonomers. Polym Chem 2012. [DOI: 10.1039/c2py20493b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
4
|
Laughlin BJ, Smith RC. Gilch and Horner−Wittig Routes to Poly(p-phenylenevinylene) Derivatives Incorporating Monoalkyl Defect-Free 9,9-Dialkyl-1,4-fluorenylene Units. Macromolecules 2010. [DOI: 10.1021/ma902346w] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brynna J. Laughlin
- Department of Chemistry, School of Material Science and Engineering, and Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634
| | - Rhett C. Smith
- Department of Chemistry, School of Material Science and Engineering, and Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634
| |
Collapse
|
5
|
Kim SO, Jung HC, Lee MJ, Jun C, Kim YH, Kwon SK. Synthesis and characterization of 9,10-diphenylanthracene-based blue light emitting materials. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23636] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
6
|
Ju JU, Chung DS, Kim SO, Jung SO, Park CE, Kim YH, Kwon SK. Synthesis and characterization of a new ethynyl-linked alternating anthracene/fluorene copolymer for organic thin film transistor. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23135] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
7
|
Synthesis and characterization of organic light-emitting copolymers containing naphthalene. Macromol Res 2009. [DOI: 10.1007/bf03218660] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
8
|
Lee WH, Kong H, Oh SY, Shim HK, Kang IN. Field-effect transistors based on PPV derivatives as a semiconducting layer. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23126] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
9
|
Wang F, He F, Xie Z, Li M, Hanif M, Gu X, Yang B, Zhang H, Lu P, Ma Y. A solution-processible poly(p-phenylene vinylene) without alkyl substitution: Introducing thecis-vinylene segments in polymer chain for improved solubility, blue emission, and high efficiency. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22853] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|