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2017.05.29 09:56

[Thu. 1 Jun. 2017] Prof. Jong-Man Kim/Department of Chemical Engineering, Hanyang University, Seoul, Korea

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Speaker Prof. Jong-Man Kim
Date Thu. 1 Jun. 2017
Time 5:00pm
Venue #633, Asan Hall, College of Science

“Stimulus-Responsive Organic Nanotubes”

 

Tubular materials formed by self-assembly of small organic molecules find great utility in chemical and material science. Conventional tubular structures often lack stability because noncovalent molecular interactions are responsible for their conformational integrities. We have developed covalently-linked chromogenic organic nanotubes which are prepared by using topochemical polymerization of self-assembled macrocyclic diacetylenes (MCDAs). Crystal structures of five MCDAs having different diameters were elucidated and four of these substances were transformed to tubular polydiacetylenes (PDA) by UV-induced polymerization. Surprisingly, MCDA-1 was found to self-assemble in stacks with a tilt angle of 62.1o, which significantly deviates from the optimal value for polymerization of 45o. This observation suggests that geometric parameters derived using linear diacetylene (DA) models might not be strictly applicable to polymerization of MCDA systems. The observations made and information obtained in this study should enhance the understanding and design of stimulus-responsive rigid organic nanotubes.

 

 

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References

1. S. Rondeau.-Gagne, J. R. Neabo, M. Desroches, J. Larouche, J. Brisson, J.-F. Morin. J. Am. Chem. Soc., 2013, 135, 110-113

2. M. Suzuki, J. F. K. Kotyk, S. I. Khan, and Y. Rubin. J. Am. Chem. Soc., 2016, 138, 5939-5956

3. J.-M. Heo, Y. Kim, S. H, J. F. J, S.-h. Han, S. Han, J. Noh, J. Kim, S. Park, H. Lee, Y. M. choi, Y.-S. Jung, and J.-M. Kim. Macromolecules. 2017, 50, 900-913

 

 

Prof. Jong-Man Kim

Department of Chemical Engineering, Hanyang University, Seoul, Korea


List of Articles
No. Subject Speaker Date
Notice Fall semester 2017 Seminar Schedule file - -
43 [Thu. 19 May. 2016] Prof. Zhuang Liu/Nanotechnology for enhanced cancer radiation therapy and immunotherapy Prof. Zhuang Liu Thursday 19 May 2016
42 [Thu. 6 Oct. 2016] Prof. Young S. Park/Atomistic Molecular Engineering of Polycyclic Aromatic Hydrocarbons Prof. Young S. Park Thursday 6 October 2016
41 [Thu. 9 Jun. 2016] Prof. Yong-Young Noh/Development of Printed Large Area Organic Transistors and Integrated Circuits Prof. Yong-Young Noh Thursday 9 June 2016
40 [Thu. 9 Mar. 2017] Prof. Woon Ju Song/Department of Chemistry, Seoul National University, Seoul, Korea Prof. Woon Ju Song Thu. 9 Mar. 2017
39 [Thu. 25 May. 2017] Prof. Wonsuk Kim/Department of Chemistry and Nano Science, Ewha Womans University, Seoul Prof. Wonsuk Kim Thu. 25 May. 2017
38 [Thu. 8 Jun. 2017] Prof. Won-jin Chung/Department of Chemistry, GIST, Gwangju, Republic of Korea Prof. Won-jin Chung Thu. 8 Jun. 2017
37 [Thu. 29 Sep. 2016] Prof. Tae-Young Yoon/Observation of Single Membrane Proteins under Mechanical Tension Prof. Tae-Young Yoon Thursday 29 September 2016
36 [Thu. 2 Jun. 2016] Prof. Sunkyu Han/Total Syntheses of Complex Alkaloids Inspired by Biosynthetic Hypotheses Prof. Sunkyu Han Thursday 2 June 2016
35 [Mon. 9 Jan. 2017] Prof. Sungwook Woo/Wyss Institute for Biologically Inspired Engineering, Harvard University, USA Prof. Sungwook Woo Mon. 9 Jan. 2017
34 [Thu. 26 Jun. 2016] Prof. Sung June Cho/Structural Elucidation of Novel Zeolite by Dual Space Approaches Using X-ray Powder Diffraction Prof. Sung June Cho Thursday 26 May 2016
33 [Thu. 17 Nov. 2016] Prof. Seunghoon Shin/Synthetic Methods Development based on Rational Analysis of Intermediates file Prof. Seunghoon Shin Thursday 17 November 2016
32 [Thu. 18 May. 2017] Student Host Colloquium : 1,1-Bisborylalkane: New Class of Organoboron Compound for the Chemo, Regio and Stereoselective Organic Transformations Prof. Seung Hwan Cho Thu. 18 May. 2017
31 [Thu. 23 Mar. 2017] Prof. Sangsu Bae/Department of Chemistry, Hanyang University, Seoul, South Korea Prof. Sangsu Bae Thu. 23 Mar. 2017
30 [Thu. 1 Dec. 2016] Prof. Sang-Yong Ju/Highly Pure Carbon Nanotubes sorted by a Flavin for Thin Film Transistor Applications Prof. Sang-Yong Ju Thursday 1 December 2016
29 [Thu. 6 Apr. 2017] Prof. Rong-Jie Chein/Institute of Chemistry, Academia Sinica, Nankang, Taipei, Taiwan Prof. Rong-Jie Chein Thu. 6 Apr. 2017
28 [October 31, 2017] New ways of vision: Protein structures in translational medicine and business development, my experience file Prof. Robert Huber(1988 Nobel Prize in Chemistry) October 31, 2017
27 [Thu. 3 Nov. 2016] Prof. Min-Sik Kim/Mass spectrometry and its applications to Biological Discovery Prof. Min-Sik Kim Thursday 3 November 2016
26 [Fri. 16 Jun. 2017] Prof. Martin Thuo/Department of Materials Science and Engineering, Iowa State University, USA Prof. Martin Thuo Fri. 16 Jun. 2017
25 [Mon. 16 Oct. 2017] Prof. Kirk S. Schanze/Department of Chemistry, University of Texas at San Antonio, Texas, USA Prof. Kirk S. Schanze Mon. 16 Oct. 2017
24 [Thu. 12 Oct. 2017] Student Host Colloquium : Versatile Dendrimer-Encapsulated Nanoparticles for Analytical Applications Prof. Joohoon Kim Thu. 12 Oct. 2017
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