A series of new aromatic poly(amide imide)s PI-P IV containing phthalazinone moieties are synthesized from the novel diamines I - IV by direct Yamazaki polycondensation.

设计将扭曲、非共平面的杂萘联苯结构引入聚芳酰胺亚胺的大分子主链，获得了耐高温、可溶解的新型聚芳酰胺亚胺。

youdao

"I wanted to show people an alternative lifestyle, " says 35-year-old Yamazaki.

CNN: JAPAN'S DOWNSIZING FABLE