摘要
研究了八 -n-丁氧基萘酞菁铜 [Cu Nc( OBu) 8]在水亚相表面上单分子膜的形成过程 ,并在亲水基片上以Z型拉膜方式成功地拉制了多层 LB膜 .研究结果表明 ,八 -n-丁氧基萘酞菁铜在表面压为 1 5～ 5 0 m N/m条件下可形成稳定的固态膜 ,其分子极限面积为 0 .74 nm2 ,崩溃压为 5 5 m N/m;多层 LB膜八 -n-丁氧基萘酞菁铜以面对面的形式有序排列 .该膜对醇类蒸气具有较好的敏感特性 ,灵敏度顺序为异丙醇 >乙醇 >甲醇 ,其响应范围为 ( 1～ 5 )× 1 0 - 5(体积分数 ) ,且响应时间短 ( 2 s内 ) ,恢复快 ( 5 s内 ) ;而对氨气 (体积分数1× 1 0 - 4 )响应时间长 ( 30～ 60 s) ,恢复慢 ( 4～ 5
The formation process of monolayer of octa n butoxy 2,3 naphthalocyanine copper(Ⅱ), [CuNc(OBu) 8] , on water subphase was studied. Its multilayers were successifully deposited on the hydrophilic substrates by Z type deposition mode using LB technique. Stable solid film with a limiting molecular area of 0.74 nm 2 and a collapse pressure of 55 mN/m were formed. The LB film structure was characterized by IR and electronic absorption spectra. Macrocycle of CuNc(OBu) 8 molecules have a face to face arrangement in the multilayers. These films have good sensitivities to vapor of alcohols, with the following sequence of sensitivities: i PrOH>EtOH>MeOH. The response time and recovery time of the LB films to vapor of MeOH, EtOH and i PrOH[volume fraction (1-5)×10 -5 ] were within 2 and 5 seconds respectively, while those of the LB films to ammonia(1×10 -4 ) were 30-60 seconds and 4-5 minutes respectively.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期14-17,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 96 330 10
2 0 10 10 0 3)
黑龙江省教育委员会基金 (批准号 :95 410 37)资助
