Prof. Juin-Yih Lai, Founder

Prof. Kueir-Rarn Lee

Prof. Chung-Jung Chuang

Prof. Yung Chang

Prof. Tsair-Wang Chung

Prof. Jung-Hui Chen

Prof. Shia-Chung Chen
Prof. Sheng-Jie You

Prof. Chien-Chieh Hu

 Prof. Meng-Hui Li

Prof. Chia-Her Lin

Prof. Hui-An Tsai

Prof. Yi-Feng Lin

Assoc. Prof. Ta-Chin Wei

Assoc.Prof.Antoine Venault

Assoc.Prof.Wei-Song Hung

Prof. Da-Ming Wang

Prof. Duu-Jong Lee

Prof. Kuo-Lun Tung
Prof. Ying-Ling Liu

Chair Prof. Akon Higuchi

Prof. Yi-Ming Sun
Prof. Shing-Jiang Lue
Prof. Shu-Hsien Huang
Dr. Feng-Ming Ho
 
 

:: Home

::
Chung Yuan Univ.

:: Chemical Engineering

 
 
      Home >  Key PersonnelAssoc. Prof. Wei-Song Hung
....
   
 
 

 

Assoc. Prof. Wei-Song Hung



 
 
Ph.D., Chem. Eng., Chung Yuan University 
E-mail
wshung@cycu.edu.tw

Professional Specialty

Membrane Separation 
Polymer Processing

Composite Materials

Positron Science

 

Research Fields
Membrane Separation Technology

This would provide a complete understanding of the microstructure variation in an ultrathin composite membrane. In regard to the membrane pervaporation performance, this research would also provide an understanding of the principle of pervaporation rate and the mechanism of pervaporation separation transport. Both of this understanding would then furnish significant information about the areas of membrane structure design and membrane performance prediction.


Positron Science

In this research, a polyamide composite membrane was fabricated, and its free volume size and distribution and variation in the multilayer structure and chemical composition to understand the relationship between the membrane separation performance and free volume. And setting up a two-dimensional age-momentum correlation (2D-AMOC) technique that can separate momentum spectroscopy from the original one-dimensional positron annihilation lifetime spectroscopy and that can quantitatively obtain the relationship between chemical composition and free volume variation at each layer in a composite membrane by means of the relationship between momentum and annihilation lifetime based on conducting an annihilation lifetime analysis for a specific momentum range (3γ or 2γannihilation).


Selected Publications:

Lo, C. F.; Wu, J. F.; Li, H. Y.; Hung W. S.; Shih C. C.; Hu, C. C.; Liu, Y. L.; Lue S. J., Novel polyvinyl alcohol nanocomposites containing carbon nano-tubes with Fe3O4 pendants for alkaline fuel cell applications, J. Membr. Sci. 2013, 444, 41. (SCI)

Chen, H. M.; Van Horn, J. D.; Jean, Y. C. Hung, W. S.; Lee, K. R., Materials characterization of free volume and void properties by twodimensional positron annihilation lifetime spectroscopy, AIP Conf. Proc. 2013, 1525, 448. (SCI)

Chao, W. C.; Huang, Y. H.; Liaw, D. J.; Hsieh, Y. Y.; Hung, W. S.; Huang, S. H.; Lee, K. R.; Lai, J. Y., Correlating the microstructure of novel polyamide thin-film composite membranes with ethanol dehydration performances, Polymer 2013, 54, 1381. (SCI)

An, Q. F.; Ji, Y. L.; Hung, W. S.; Lee, K. R.; Gao, C. J., AMOC Positron Annihilation Study of Zwitterionic Nanofiltration Membranes: Correlation between Fine Structure and Ultrahigh Permeability, Macromolecules 2013, 46, 2228. (SCI)

Huang, Y. H.; Chao, W. C.; Hung, W. S.*; An Q. F.; Chang, K. S.; Huang, S. H.; Tung, K. L.; Lee, K. R.; Lai, J. Y., Investigation of fine-structure of polyamide thin-film composite membrane under swelling effect by positron annihilation lifetime spectroscopy and molecular dynamics simulation, J. Membr. Sci. 2012, 417, 201. (SCI)

An Q. F.; Hung, W. S.*; Lo, S. C.; Li, Y. H.; De Guzman, M.; Hu, C. C.; Lee, K. R.; Jean, Y. C.; Lai, J. Y., Comparison between Free Volume Characteristics of Composite Membranes Fabricated through Static and Dynamic Interfacial Polymerization Processes, Macromolecules 2012, 45, 3428. (SCI)

Chao, W. C.; Huang, Y. H.; Hung, W. S.*; An Q. F.; Hu, C. C.; Lee, K. R.; Lai, J. Y., Effect of the surface property of poly(tetrafluoroethylene) support on the mechanism of polyamide active layer formation by interfacial polymerization,   Soft Matter 2012, 34, 8998. (SCI)

Nanda, D; Tung, K. L.; Hung, W. S.; Lo, C. H.; Jean, Y. C.; Lee, K. R.; Hu, C. C.; Lai, J. Y., Characterization of fouled nanofiltration membranes using positron annihilation spectroscopy, J. Membr. Sci. 2011, 382, 124. (SCI)

An Q. F.; Chen, J. T.; De Guzman, M.; Hung, W. S.; Lee, K. R.; Lai, J. Y., Multilayered Poly(vinylidene fluoride) Composite Membranes with Improved Interfacial Compatibility: Correlating Pervaporation Performance with Free Volume Properties, Langmuir 2011, 27, 11062. (SCI)

Liao, K. S.; Chen, H. M.; Awad, S.; Yuan, J. P.; Hung, W. S.;  Lee, K. R.; Lai, J. Y.; Hu, C. C.; Jean, Y. C., Determination of Free-Volume Properties in Polymers Without Orthopositronium Components in Positron Annihilation Lifetime Spectroscopy, Macromolecules 2011, 44, 6818. (SCI)

Hung, W. S.; De Guzman, M.; An Q. F.; Lee, K. R.; Jean, Y. C.; Lai, J. Y., Solving the Charging Effect in Insulating Materials Probed by a Variable Monoenergy Slow Positron Beam, Langmuir 2011, 27, 3020.

Hung, W. S.; De Guzman, M.; Huang, S. H.; Lee, K. R.; Lai, J. Y.; Jean, Y. C., Characterizing Free Volumes and Layer Structures in Asymmetric Thin-Film Polymeric Membranes in the Wet Condition Using the Variable Monoenergy Slow Positron Beam, Macromolecules 2010, 43, 6127.
Huang, S. H.; Hung, W. S.; Liaw, D. J.; Tsai, H. A.; Jiang, G. J.; Lee, K. R.; Lai, J. Y., Positron annihilation study on thin-film composite pervaporation membranes: Correlation between polyamide fine structure and different interfacial polymerization conditions, Polymer 2010, 51, 1370.
Huang, S. H.; Hung, W. S.; Liaw, D. J.; Li, C. L.; Kao, S. T.; Wang, D. M.; De Guzman, M.; Hu, C. C.; Jean, Y. C.; Lee, K. R.; Lai, J. Y., Investigation of multilayer pervaporation membrane by positron annihilation spectroscopy, Macromolecules 2008, 41, 6438.
  Tel +886-3-265-4190

Fax+886-3-265-4198

Emailmembrane@cycu.edu.tw

Address

No.493, Xinzhong N. Rd., 

Zhongli Dist., Taoyuan City 320,

Taiwan (R.O.C.)