期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 217, 期 21, 页码 2409-2414出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201600351
关键词
donor-acceptor Stenhouse adducts; patterns; photoswitchable; visible light responsive
资金
- National Natural Science Foundation of China [21474056]
A polystyrene based visible light responsive polymer bearing donor-acceptor Stenhouse adduct (DASA) pendants is designed and synthesized. Styrene-vinylbenzyl chloride copolymer (PS-co-PCMS) is prepared by free radical polymerization. Then amino-functionalized PS-co-PCMS is obtained by the nucleophilic substitution reaction between the chloromethyl unit and n-butylamine. Finally, the prepared secondary amines of the polymer are reacted with 5-(furan-2-ylmethylene)-2,2-dimethyl-1,3-dioxane-4,6-dione to fully change them into DASA pendants. The final DASA-containing polymer shows a tunable photoswitching property upon irradiation with visible light. A photoinduced contact angle change of water on the spin-coated film of DASA polymer is observed. The DASA polymer film shows excellent photolithographic performance, with well-defined patterns being efficiently photofabricated using a suitable mask.
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