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Neutron-scattering evidence of polymer persistence-length enhancement caused by physical gelation
Phys. Rev. Lett. 58, 1532 – Published 13 April, 1987
DOI: https://doi.org/10.1103/PhysRevLett.58.1532
Abstract
The chain trajectory in physical gels prepared from isotactic polystyrene has been investigated by neutron scattering. It is found that the chain possesses a wormlike conformation with a persistence length of about 80 Å, a value most unusual for this polymer (b≃20 Å in the vitreous state). Accordingly, the gel state may be the third state for this type of polymer.
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