title: Performance comparison of acrylic and thiol-acrylic resins in two-photon polymerization.
abstract: Microfabrication by two-photon polymerization is investigated using resins based on thiol-ene chemistry. In particular, resins containing different amounts of a tetrafunctional acrylic monomer and a tetrafunctional thiol molecule are used to create complex microstructures. We observe the enhancement of several characteristics of two-photon polymerization when using thiol-acrylic resins. Specifically, microfabrication is carried out using higher writing velocities and it produces stronger polymeric microstructures. Furthermore, the amount of shrinkage typically observed in the production of three-dimensional microstructures is reduced also. By means of microspectrometry, we confirm that the thiol-acrylate mixture in TPP resins promote monomer conversion inducing a higher degree of cross-linked network formation.
authors.forename: Lijia
authors.initials: L
authors.lastname: Jiang
authors.forename: Wei
authors.initials: W
authors.lastname: Xiong
authors.forename: Yushen
authors.initials: Y
authors.lastname: Zhou
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.forename: Xi
authors.initials: X
authors.lastname: Huang
authors.forename: Dawei
authors.initials: D
authors.lastname: Li
authors.forename: Tommaso
authors.initials: T
authors.lastname: Baldacchini
authors.forename: Lan
authors.initials: L
authors.lastname: Jiang
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Lu