Emerging Photo-Initiating Systems in Coatings from Molecular Engineering Perspectives
Source abstract
Abstract
Photoinitiators (PIs) are pivotal in enabling energy-efficient, spatiotemporally controlled photopolymerization for coatings. To address application-specific demands of coatings, diverse systems of Norrish-Type I (e.g., oxime esters, acylphosphine oxides) and Type II (e.g., onium salts, ketones) PIs have been engineered through systematic molecular design strategies. A comprehensive review necessitates highlighting recent achievements in designing PIs by various molecular engineering approaches. The π-conjugation extension, push–pull structures, and auxochrome incorporation boost strong and long-wavelength absorption; unimolecular PI systems with hydrogen-donor modifications improve reactivity and reduce oxygen inhibition; photobleaching via cleavable bonds and blocking conjugation enables colorless coating and deep-penetration curing; polymerizable macromolecular designs enhance migration resistance; organosilicon-functionalized structures optimize monomer compatibility. These strategies bridge molecular innovations with advanced applications in biomedical and deep-cured coatings.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Photopolymerization techniques and applications · Nanofabrication and Lithography Techniques · Surface Modification and Superhydrophobicity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Suzhou OMAY Optical Materials Co., Ltd., Suzhou 215011, China
College of Chemistry and Materials Science, Hebei University, Baoding 071002, China
Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan 215316, China
Funding
Zhejiang Provincial Natural Science Foundation of China
References (100+)
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