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Synthesis, characterization, and performance of a novel polycarboxylate superplasticizer with a crosslinked topological structure
Author(s) -
Zhao Hongwei,
Liao Bing,
Wang Kun,
Zhao Yangyang,
Nian Fuwei,
Meng Yeyun,
Pang Hao
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46716
Subject(s) - superplasticizer , thermogravimetric analysis , dispersion (optics) , materials science , topology (electrical circuits) , characterization (materials science) , chemical engineering , composite material , polymer chemistry , nanotechnology , optics , physics , mathematics , compressive strength , combinatorics , engineering
In this work, a novel crosslinked topological polycarboxylate superplasticizer (TPC) was successfully synthesized. In comparison with conventional comb‐shaped superplasticizer (CPC), the TPC performed better dispersion maintaining stronger water reduction capabilities. The TPC provided a large spherical space due to its crosslinked molecular structure, which was the main reason for enhanced dispersion performance. It was evident that the addition of TPC leads to a delayed and lowered heat flow peak during the early stage of the hydration process. Thermogravimetric analysis showed that the hydrated products exhibited a more stable performance in the presence of the TPC. Changing the molecular structure from a comb‐shape to a crosslinked topological could effectively improve the comprehensive performances of the PCs. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46716.