CAJ | 학술논문

通过钯催化的Sonagashira偶合反应合成出了3种带有不同链长烷氧基侧链,主链中含有2,1,3-苯并硒二唑纽分的聚苯乙炔类共轭聚合物并对其化学结构进行了表征确认.此类聚合物在常用的有机溶剂中具有较好的溶解性和成膜性.通过紫外可见光谱、荧光光谱、循环伏安等对所得聚合物的基本性能进行了探讨.聚合物P7、P9和P12在溶液状态下的紫外吸收分别为421、450和450nm,相对应最大发射分别位于475、482和481nm;固态下聚合物的吸收分别为433、486和486nm,相对应最大发射为575、583和590nm.聚合物的循环伏安测试表明聚合物P7、P9、P12的起始电位为1.19、1.19、1.18V.聚合物非线性光学性能研究表明取代基为十二碳烷氧基的聚合物显示出了良好的三阶非线性光学性能,其三阶非线性光学系数为3.54×10-12esu.
통과파최화적Sonagashira우합반응합성출료3충대유불동련장완양기측련,주련중함유2,1,3-분병서이서뉴분적취분을결류공액취합물병대기화학결구진행료표정학인.차류취합물재상용적유궤용제중구유교호적용해성화성막성.통과자외가견광보、형광광보、순배복안등대소득취합물적기본성능진행료탐토.취합물P7、P9화P12재용액상태하적자외흡수분별위421、450화450nm,상대응최대발사분별위우475、482화481nm;고태하취합물적흡수분별위433、486화486nm,상대응최대발사위575、583화590nm.취합물적순배복안측시표명취합물P7、P9、P12적기시전위위1.19、1.19、1.18V.취합물비선성광학성능연구표명취대기위십이탄완양기적취합물현시출료량호적삼계비선성광학성능,기삼계비선성광학계수위3.54×10-12esu.
Poly(aryleneethynylene) derivatives containing 2,1,3-benzoselenadiazole group and bearing side chainsof different lengths, P7, P9 and P12, have been synthesized by palladium-catalyzed Sonagashira reaction, and their chemical structure were characterized by 1H NMR, FT-IR and elemental analyses. All of these polymers showed good solubility in common organic solvents and good film-forming capability. The optical and electro-chemical properties of them were investigated. The maximum absorbanee of P7-P12 in solution appeared at 421,450 and 450nm, and the corresponding emission was peaked at 475, 482 and 481nm, respectively. The maxi-mum absorbanee of P7-P12 in solid appeared at 433,486 and 486nm, with the corresponding emission peaked at 575,583 and 590nm, respectively. C-V investigation of these polymers showed that the onset voltage of oxida-tion processes of P7-P12 appeared at 1. 19, 1.19 and 1.18V, respectively. The third-order non-linear optical be-havior of typical polymer, P12 was also investigated here and the third-order nonlinear optical index of this poly-mer is 3.54× 10-12esu.