Design and characterization of acrylic pressure sensitive adhesives polymer network
발표자
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초록
내용
Polymer networks are crucial for determining the physical, mechanical, and rheological properties of polymers. They are primarily controlled through physical and chemical crosslinking. Pressure-sensitive adhesives (PSAs) typically use both physical and chemical crosslinking to control their network structure. Chemical crosslinking often involves using crosslinkers or additional processing to form covalent bonds. However we designed chemically crosslinked acrylic PSAs using hydroxyl-terminated acrylate as a comonomer, without additional crosslinkers or processing. This approach relies on hydrogen atom transfer (HAT) between the α-carbon of the hydroxyl group and radicals. We examined how monomer, photoinitiator, and light intensity affect polymer network formation through photopolymerization, demonstrating network formation under various conditions. This study provides insights into designing and fine-tuning polymer networks by selecting monomers and adjusting polymerization conditions.