Photoinitiated Polymerization of a Semifluorinated Liquid Crystalline Monomer Exhibiting a Reduced Rate in the Smectic Phase
Document Type
Article
Publication Date
3-27-2000
Department
Polymers and High Performance Materials
Abstract
The photoinitiated polymerization of a sterically hindered semi-fluorinated monomer, which is characterized by a hindered radical chain propagation site, was followed both in an isotropic and a highly ordered smectic liquid crystalline phase. The polymerization rate is slower in the smectic phase than in the isotropic phase, presumably a result of a decrease in both the propagation and termination rate constants. The decrease in the propagation rate results in a very slow persistent increase in polymer molecular weight after the initiating light source is removed. Polymerization from the smectic phase of the monomer proceeds in a non-equilibrium matrix.
Publication Title
ACS Symposium Series
Volume
755
First Page
54
Last Page
74
Recommended Citation
Hoyle, C. E.,
Mathias, L. J.,
Jariwala, C.,
Sheng, D.,
Sundell, P.
(2000). Photoinitiated Polymerization of a Semifluorinated Liquid Crystalline Monomer Exhibiting a Reduced Rate in the Smectic Phase. ACS Symposium Series, 755, 54-74.
Available at: https://aquila.usm.edu/fac_pubs/16107