Solution and solid-state properties of mechanically linked polycarbonates
(2004) Macromolecules — Vol. 37, n° 1, p. 66-70 (2004)
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- Authors
Bailly, Christian 
- Abstract
- Solution and solid-state properties of novel mechanically linked polyearbonate copolymers are reported and compared to corresponding properties of a reference copolymer with identical chemical composition but no mechanical linkages. The unperturbed dimensions of the catenane copolymers in solution are smaller than for bisphenol A polycarbonate homopolymer, presumably reflecting favorable specific interactions between bisphenol A and catenane units. A difference is observed between the mechanically linked and unlinked analogues, pointing to a specific effect of the mechanical linkage. Crystallinity measurements suggest a segmented composition for the copolymers, consistent with the solid-state synthesis. The melting point of the catenane copolymers is lower than that of the bisphenol A polycarbonate homopolymer because of a copolymer effect. The melting point of a mechanically linked copolymer is higher than of the unlinked analogue, presumably because of the additional mobility in the melt introduced by free macrocycle chain ends vs interlocked catenane units.
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Citations
Fustin, C.-A., Bailly, C., Clarkson, G., Galow, T., & Leigh, D. (2004). Solution and solid-state properties of mechanically linked polycarbonates. Macromolecules, 37(1), 66-70. https://doi.org/10.1021/ma034680c (Original work published 2004)