A new route to hyperbranched macromolecules:: Syntheses of photosensitive poly(aroylarylene)s via 1,3,5-regioselective polycyclotrimerization of bis(aroylacetylene)s

被引:76
作者
Dong, HC
Zheng, RH
Lam, JWY
Häussler, M
Qin, AJ
Tang, BZ [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Hong Kong, Peoples R China
[2] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
关键词
D O I
10.1021/ma050342v
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A new synthetic route to hyperbranched polymers is developed. Polycyclotrimerizations of functional diynes 1-3 initiated by a simple base of piperidine lead to the formation of hyperbranched poly(aroylarylene)s P1-P3 with perfect 1,3,5-regioregularity and high degree of branching (up to 100%) in high yields (up to 99%). The polymers show high photosensitivities and can be readily photo-crosslinked to give photoresist patterns with nanometer resolutions.
引用
收藏
页码:6382 / 6391
页数:10
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