Shows altered viscosity impacts polymerization in reactive polyurethane coatings, suggesting improved material properties.
By regulating molecular weight and free –NCO content of prepolymer, the tuned viscosity can enlarge the reactive difference between linear chain extender and star-shaped cross-linker. Thus, sequential polymerization can be realized in RPU coatings.
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Zhao et al. (2026) studied this question.
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