Jin Bangkun, He Pingsheng. Making Multilayer Polymeric Microstructure with Microcontact Printing[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 439-443. doi: 10.1088/1674-0068/18/3/439-443
Citation: Jin Bangkun, He Pingsheng. Making Multilayer Polymeric Microstructure with Microcontact Printing[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 439-443. doi: 10.1088/1674-0068/18/3/439-443

Making Multilayer Polymeric Microstructure with Microcontact Printing

doi: 10.1088/1674-0068/18/3/439-443
Funds:  Project supported by the National Natural Science Foundation of China (20374049).
  • Received Date: 2004-02-24
  • Microstructures of various polymers, such as polystyrene and polymethyl methacrylate, were fabricated with microcontact printing, directly using the corresponding dilute polymeric solutions as “inks”, whose concentrations were about 10 g/L. By repeatedly cross-stamping with the inks, multilayer quasi-three-dimensional polymeric microstructures could be obtained. Both optical photographs and SEM photos showed clear microstructures, which were nearly accurate replication of the original patterns in the PDMS stamps. Microlines of poly-[bis-(p-toluene sulfonate)-2,4-hexadiyne-1,6-diol)] (PTS) were also fabricated by first processed microcontact printing with solution of the corresponding monomer TS/acetone as ink, then followed with UVpolymerization of the monomer micropatterns at solid state. Unlike small molecule processes, the molecules of polymeric inks did not selfassembly on the surface of substrates. The formation of polymeric microstructures could be ascribed to the fact that, after volatilization of solvents, polymers tend to stick to the surface of glass substrate which has higher surface free energy (about 72 mN/m), but not to the surface of PDMS stamp which has lower surface free energy (about 20 mN/m). Also the microcontact printing process was studied with optical microscopy, and the main factor--volatilization time of solvent was discussed. The results showed that the volatilization time of solvent is very crucial to the process of polymeric microcontact printing, and with too longer or too shorter volatilization time, the obtained microstructures would become discontinuous or distorted, respectively. For example, with a polystyrene/chloroform solution as ink, the optimal volatilization time was about 15~20 s.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(1240) PDF downloads(1169) Cited by()

Proportional views
Related

Making Multilayer Polymeric Microstructure with Microcontact Printing

doi: 10.1088/1674-0068/18/3/439-443
Funds:  Project supported by the National Natural Science Foundation of China (20374049).

Abstract: Microstructures of various polymers, such as polystyrene and polymethyl methacrylate, were fabricated with microcontact printing, directly using the corresponding dilute polymeric solutions as “inks”, whose concentrations were about 10 g/L. By repeatedly cross-stamping with the inks, multilayer quasi-three-dimensional polymeric microstructures could be obtained. Both optical photographs and SEM photos showed clear microstructures, which were nearly accurate replication of the original patterns in the PDMS stamps. Microlines of poly-[bis-(p-toluene sulfonate)-2,4-hexadiyne-1,6-diol)] (PTS) were also fabricated by first processed microcontact printing with solution of the corresponding monomer TS/acetone as ink, then followed with UVpolymerization of the monomer micropatterns at solid state. Unlike small molecule processes, the molecules of polymeric inks did not selfassembly on the surface of substrates. The formation of polymeric microstructures could be ascribed to the fact that, after volatilization of solvents, polymers tend to stick to the surface of glass substrate which has higher surface free energy (about 72 mN/m), but not to the surface of PDMS stamp which has lower surface free energy (about 20 mN/m). Also the microcontact printing process was studied with optical microscopy, and the main factor--volatilization time of solvent was discussed. The results showed that the volatilization time of solvent is very crucial to the process of polymeric microcontact printing, and with too longer or too shorter volatilization time, the obtained microstructures would become discontinuous or distorted, respectively. For example, with a polystyrene/chloroform solution as ink, the optimal volatilization time was about 15~20 s.

Jin Bangkun, He Pingsheng. Making Multilayer Polymeric Microstructure with Microcontact Printing[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 439-443. doi: 10.1088/1674-0068/18/3/439-443
Citation: Jin Bangkun, He Pingsheng. Making Multilayer Polymeric Microstructure with Microcontact Printing[J]. Chinese Journal of Chemical Physics , 2005, 18(3): 439-443. doi: 10.1088/1674-0068/18/3/439-443

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return