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Polymerization in soft nanoconfinement of lamellar and reverse hexagonal mesophases

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Abstract

This work describes the kinetics of thermal polymerization in nanoconfined domains of lyotropic liquid crystal (LLC) templates by using chemorheological studies at different temperatures. We investigate lamellar and reverse hexagonal LLC phases with the same concentration of the monomeric phase. Results show that the mesophase structures remain intact during thermal polymerization with very slight changes in the domain size. The polymerization rate decreases in the nanoconfined structure compared to the bulk state due to the segregation effect, which increases the local monomer concentration and enhances the termination rate. Additionally, the polymerization rate is faster in the studied reverse hexagonal systems compared to the lamellar ones due to their lower degree of confinement. A higher degree of confinement also induces a lower monomer conversion. Differential scanning calorimetry confirms the obtained results from chemorheology.

Graphical abstract: Polymerization in soft nanoconfinement of lamellar and reverse hexagonal mesophases

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Publication details

The article was received on 03 Aug 2019, accepted on 14 Sep 2019 and first published on 16 Sep 2019


Article type: Paper
DOI: 10.1039/C9SM01565E
Soft Matter, 2019, Advance Article

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    Polymerization in soft nanoconfinement of lamellar and reverse hexagonal mesophases

    S. Qavi, A. Bandegi, M. Firestone and R. Foudazi, Soft Matter, 2019, Advance Article , DOI: 10.1039/C9SM01565E

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