摘要
用可见-紫外分光光度法观察了聚(3-己烷基)噻吩(P3HexTh)在氯仿中的π-聚集行为。将乙酸、乙醇、甲醇等聚(3-己烷基)噻吩难溶溶剂加入P3HexTh的氯仿溶液时,产生比较稳定的聚合物聚集态。用直径0.20-0.01μm滤膜过滤P3HexTh溶液的实验结果显示聚合物胶体颗粒随着溶液中乙酸量的增加而增大。金属配合物催化法合成的头对尾P3HexTh(Zn/Ni)发生π-聚集行为,而用化学氧化法合成的P3HexTh(Fe)没有出现明显的π-聚集行为。
π-Stacking behavior of poly(3-hexylthiophene-2,5-diyl) in chloroform has been studied. Addition of CH3COOH to CHCI3 solutions of head-to-tail (HT) type HT-P3HexTh leads to π-stacking of the polymer molecules to form stable colloidal particles. Results of filtration experiments using membranes with 0.20 - 0.01 μm pores reveal their colloidal particle sizes changes following the increase of CF3 COOH amounts in solutions. P3HexThs with irregular structures ( P3HexTh(Fe) ) show a weaker trend to aggregate than HT-P3HexTh (Ni) .
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2006年第4期501-503,共3页
Journal of Materials Science and Engineering
基金
This work was partly supported bythe Grant-in-Aidfor Youth Teacher’s Scientific ResearchfromXinjiang University[QN040115&2001(150)].