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Correction: Finite cohesion due to chain entanglement in polymer melts

Shiwang Cheng a, Yuyuan Lu b, Gengxin Liu a and Shi-Qing Wang *a
aDepartment of Polymer Science, University of Akron, Akron, Ohio 44325-3909, USA. E-mail: swang@uakron.edu
bState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China

Received 26th June 2017 , Accepted 26th June 2017

First published on 13th July 2017


Correction for ‘Finite cohesion due to chain entanglement in polymer melts’ by Shiwang Cheng et al., Soft Matter, 2016, 12, 3340–3351.


Because of the withdrawal of four articles,1–4 some statements in ref. 5 should be corrected. For example, in the first paragraph on the right column of page 3346 and the last paragraph on the left column of page 3350 of ref. 5, it was asserted that chain retraction does not occur in a barrier-less fashion, which is consistent with the flawed conclusions1–4 of the MD simulations. The correction note aims to indicate that the statements in these two places of ref. 5 are no longer valid.

Nevertheless, the discrepancy between data and theory in ref. 5 did correctly suggest that it may be problematic to characterize the stress state and chain conformation on a default length scale of the equilibrium tube segment. A plausible picture may be that the characteristic structure of the entanglement network keeps evolving, e.g., the mesh size keeps growing over time both in startup and during relaxation from step strain. In any event, future MD simulations may provide clearer and more concrete pictures for nonlinear rheological behavior of entangled polymeric liquids.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

References

  1. Y. Y. Lu, L. J. An, S. Q. Wang and Z. G. Wang, ACS Macro Lett., 2013, 2, 561–565 CrossRef CAS .
  2. Y. Y. Lu, L. J. An, S. Q. Wang and Z. G. Wang, ACS Macro Lett., 2014, 3, 569–573 CrossRef CAS .
  3. Y. Y. Lu, L. J. An, S. Q. Wang and Z. G. Wang, Macromolecules, 2014, 47, 5432–5435 CrossRef CAS .
  4. Y. Y. Lu, L. J. An, S. Q. Wang and Z. G. Wang, Macromolecules, 2015, 48, 4164–4173 CrossRef CAS .
  5. S. Cheng, Y. Lu, G. Liu and S.-Q. Wang, Soft Matter, 2016, 12, 3340–3351 RSC .

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