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Competing Electronic Activation and Steric Constraint Govern Curing-Induced Cross-Link Density and Nanoscale Heterogeneity in Dihydroxynaphthalene-Modified Phenolic Resin
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DOI：10.1016/j.polymer.2026.130406.png)
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Abstract
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• Electronic activation and steric constraint govern DHN-phenolic curing behavior • π-Conjugated DHN biases early DHN-containing methylene-bridge formation • Selective bridging generates nanoscale cross-link density heterogeneity • Moderate DHN loading balances cross-link density and nanoscale heterogeneity • 10 mol% DHN increases flexural strength and elongation at break by 36% and 30%
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