Articles

Modeling of temperature-dependent diffusion and polymerization kinetics and their effects on two-photon polymerization dynamics

[+] Author Affiliations
Nitin Uppal

The University of Texas at Arlington, Mechanical and Aerospace Engineering Department, 500 West First Street, Arlington, Texas 76019

Panos S. Shiakolas

The University of Texas at Arlington, Mechanical and Aerospace Engineering Department, 500 West First Street, Arlington, Texas 76019

J. Micro/Nanolith. MEMS MOEMS. 7(4), 043002 (December 05, 2008). doi:10.1117/1.3033203
History: Received April 07, 2008; Revised September 17, 2008; Accepted October 14, 2008; Published December 05, 2008
Text Size: A A A

Two-photon polymerization (2PP) is an effective technique for the fabrication of complex polymeric 3-D micro/nanofeatures and structures using ultrashort pulses from a NIR laser source. The interaction of laser pulses with photoresponsive resin creates a voxel (volumetric pixel) that defines the resolution of the 2PP process. In this work, we present a mathematical model of the 2PP process that considers the effects of radical diffusion and polymerization kinetics on polymerization dynamics. The increase in temperature during the polymerization process and its effect on polymerization kinetics are considered in the model. The developed model is solved numerically to obtain a better understanding of the polymerization dynamics at various time scales. The effects of diffusion and polymerization kinetics on the growth of voxels are analyzed from the presented simulations. A comparison between high and low pulse repetition rate systems is also presented, showing different polymerization dynamics.

Figures in this Article
© 2008 Society of Photo-Optical Instrumentation Engineers

Citation

Nitin Uppal and Panos S. Shiakolas
"Modeling of temperature-dependent diffusion and polymerization kinetics and their effects on two-photon polymerization dynamics", J. Micro/Nanolith. MEMS MOEMS. 7(4), 043002 (December 05, 2008). ; http://dx.doi.org/10.1117/1.3033203


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Laser printing of cells into 3D scaffolds. Biofabrication 2010;2(1):014104.
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.