Determine Mesh Size through Monomer Mean-Square Displacement

A dynamic method to determine the main parameter of the tube theory through monomer mean-square displacement is discussed in this paper. The tube step length can be measured from the intersection of the slope-12 line and the slope-14 line in log-log plot, and the tube diameter can be obtained by recording the time at which g1 data start to leave the slope-12 regime. According to recent simulation data, the ratio of the tube step length to the tube diameter was found to be about 2 for different entangled polymer systems. Since measuring the tube diameter does not require g1 data to reach the slope-14 regime, this could be the best way to find the entanglement length from microscopic consideration.

• Publication year

  2019

• Venue

  Polymers

• Publication date

  2019-08-27

• Fields of study

  Medicine, Materials Science

• Identifiers
  DOI 10.3390/polym11091405PMID 31461920PMCID 6780637
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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