Issue 3, 2021

Remarkable untangled dynamics behavior of multicyclic branched polystyrenes

Abstract

A typical multicyclic branched-topology polystyrene (c-BPS) with high molecular weight (30 K ≤ Mw MALLS ≤ 300 K g mol−1) and narrow dispersity (1.2 ≤ Đ ≤ 1.3) was efficiently synthesized by combining atom transfer radical polymerization (ATRP) and atom transfer radical coupling (ATRC) techniques. The topological constraints imposed by the presence of cyclic units and branch points had a marked influence on the entanglement behaviors of the polymer chains in solution. Therefore, c-BPS possesses the lowest loss modulus (G′′) and viscosity (η), the highest diffusion coefficient (D0), the largest mesh size (ξ) and the fastest terminal relaxation (TR), compared with branched and linear precursors.

Graphical abstract: Remarkable untangled dynamics behavior of multicyclic branched polystyrenes

Supplementary files

Article information

Article type
Communication
Submitted
29 Oct 2020
Accepted
02 Dec 2020
First published
09 Dec 2020

Chem. Commun., 2021,57, 399-402

Remarkable untangled dynamics behavior of multicyclic branched polystyrenes

X. Xue, Y. Chen, Y. Li, K. Liang, W. Huang, H. Yang, L. Jiang, Q. Jiang, F. Chen, T. Jiang, B. Lin, B. Jiang and H. Pu, Chem. Commun., 2021, 57, 399 DOI: 10.1039/D0CC07129C

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