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工程科学与技术:2007,39(1):108-112
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光致变色液晶萘并吡喃的合成及光致变色性质
(四川大学 化学学院,四川 成都 610064)
Synthesis of Liquid Crystalline 3H-Naphtho[2,1-b]Pyrans and Studies on Their Photochromic Characteristic
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投稿时间:2006-05-23    
中文摘要: 在相转移催化剂C18H37N(CH3)3Cl的存在下合成了6-十二烷基-2-萘酚;6-十二烷基-2-萘酚分别与3种炔醇进行缩合,得到了3种萘环上有柔性长链的萘并吡喃:8-十二烷基-3,3-二苯基-3H-萘并[2,1-b] 吡喃(NP1)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP2)、8-十二烷基-3,3-二(4,4′-甲氧基)苯基-3H-萘并[2,1-b]吡喃(NP3),对它们在溶液中和高分子膜中光致变色性能进行了研究。利用POM与DSC对其液晶性进行了研究,发
Abstract:N,N,N-trimethyloctadecan-1-aminium chloride was used to prepare 6-dodecylnaphthen-2-ol. And three novel 3H-naphtho[2,1-b]pyrans with long chain substituents were synthesized by the condensation of 6-n-dodecylnaphthen-2-ol with prop-2-yn-1-ols, which are 8-dodecyl-3,3′-diphenyl-3H-naphtho[2,1-b]pyran(NP1), 8-dodecyl-3,3′-bis (p-methoxyphenyl) -3H-naphtho[2,1-b]pyran(NP2) and 8-dodecyl-3,3′-bis(p-n-butoxyphenyl) -3H- naphtho[2,1-b] pyran (NP3), respectively. The incorporation of long alkyl groups into the rigid naphthopyran results in the liquid crystalline property. The liquid crystal phases of the three compounds were studied by means of differential scanning calorimetry (DSC) and Polarizing optical microscope (POM) with a heating stage. And the photochromis properties, doped in PMMA and dissolved in toluene, were investigated, too.
文章编号:20070122     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(20472060);教育部博士点基金资助项目(20030610069)
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引用文本:
胡卫林,吴江勇,王明哲.光致变色液晶萘并吡喃的合成及光致变色性质[J].工程科学与技术,2007,39(1):108-112.
.Synthesis of Liquid Crystalline 3H-Naphtho[2,1-b]Pyrans and Studies on Their Photochromic Characteristic[J].Advanced Engineering Sciences,2007,39(1):108-112.