以酚醛树脂(PF)为热交联物质,添加交联剂2,4,6-三[双(甲氧基甲基)氨基]-1,3,5-三嗪和产酸剂二苯基碘鎓六氟磷酸盐,表面带有精细微纳米图案的聚二甲基硅氧烷(PDMS)作为印章,采用热微接触印刷(hotμCP)技术制备热交联聚合物的微纳米图案.通过扫描电子显微镜(SEM)和接触角测量仪对精细结构图案进行表征.结果表明,这种简单、快速、低成本的hotμCP法能够成功地实现热交联聚合物的图案化,且最小尺度可接近100nm.
We added 2,4,6-tris[bis(methoxymethyl)-amino]-1,3,5-triazine as a crosslinking agent and diphenyliodonium hexafluorophosphate as an acid generator to phenolic resin, which is a thermosensitive polymer.A topographically patterned polydimethylsiloxane (PDMS) stamp was used to obtain micro/nano structures by hot microcontact printing (hot μCP).The fine pattern was characterized using scanning electron microscopy (SEM) and a contact angle measurement.We found that hot μCP is a fast, simple, and inexpensive technique that can produce thermal cross-linking patterns and the obtained minimum size is close to 100 nm.