AbstractTwo 1,4-bis(hexatriynyl)benzene derivatives with urethane groups, i.e., 10,10′-(1,4-phenylene)bis(5,7,9-decatriynyl N-(butoxycarbonylmethyl)carbamate) 1 and its perfluorophenylene derivative 2, were synthesized, and their solid-state photopolymerization was investigated. Upon UV irradiation, both of them showed excitonic absorption characteristic of polydiacetylene (PDA). In particular, 2 showed an absorption maximum at 743 nm, which was approximately 100 nm longer than that of conventional PDAs because of the effective conjugation between the polymer backbone and π-conjugated substituents. The conversion of 1 to the corresponding polymer was quite low. On the other hand, more than half of the hexatriynyl moieties of 2 were found to polymerize, indicating that most of the monomers were converted to the polymer upon prolonged UV irradiation.10,10′-(1,4-Phenylene)bis(5,7,9-decatriynyl N-(butoxycarbonylmethyl)carbamate) 1 and its perfluorophenylene derivative 2 were synthesized. Upon UV irradiation, both of them showed excitonic absorption of polydiacetylene. In particular, 2 showed an absorption maximum at 743 nm, which was approximately 100 nm longer than that of conventional polydiacetylenes, and its solid-state polymerization scheme was investigated.

中文翻译：

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1,4-双（己三炔基）苯衍生物的固态聚合

摘要 两种具有氨基甲酸酯基团的 1,4-双（六三炔基）苯衍生物，即 10,10'-（1,4-亚苯基）双（5,7,9-十炔基 N-（丁氧基羰基甲基）氨基甲酸酯）1 及其全氟亚苯基衍生物2, 合成，并研究了它们的固态光聚合。在紫外线照射下，它们都表现出聚二乙炔（PDA）的激子吸收特性。特别是，由于聚合物主链和 π 共轭取代基之间的有效共轭，2 在 743 nm 处显示出最大吸收，比常规 PDA 长约 100 nm。1 到相应聚合物的转化率非常低。另一方面，发现 2 中超过一半的六三炔基部分发生聚合，表明大部分单体在长时间的紫外线照射下转化为聚合物。合成了10,10'-(1,4-亚苯基)双(5,7,9-十炔基N-(丁氧基羰基甲基)氨基甲酸酯)1及其全氟亚苯基衍生物2。在紫外线照射下，它们都表现出聚二乙炔的激子吸收。特别是，2 在 743 nm 处显示出最大吸收，比常规聚二乙炔长约 100 nm，并研究了其固态聚合方案。