摘要
聚乙快的不稳定性及难以加工影响了其应用.最近,Naarmann通过陈化在硅油中的Ti(OBu)_4^-AlEt_3催化体系及加入不同量的Li-(n-Bu)制得了拉伸后电导率达10~5S/cm的聚乙炔膜,此膜的电导和形态在空气中几个月几乎不发生改变.我们曾报导用加热的甲苯-Ti(OBu)_4^--AlEt_3催化体系合成高性能聚乙炔膜.本文进一步讨论不同溶剂对高性能聚乙炔(HPPA)合成及性能的影响.
Acetylene polymerized by a heat aged mixture of Ti(OBu)_4^-AlEt_3 in various solvents(alkane and aromatic hydrocarbon)yields a high performance polyacetylene film (HPPA).Being doped with iodine, the films showed an electrical conductivity of 10~3 S/cm at roomtemperature. The value was over 10~4 S/cm after stretching of the film. The HPPA filmswere high compact and stable in air and composed of relatively ordered piling up of fibrils.Its apparent density and permeability of N_2 were 0.80g/cm^3 and 3.2×10^(-11) Jcm^3 (STP) /cm^2·s·cmHg,respectively. The results of IR, TEM and X-ray diffraction indicated that the filmswere high crystalline and had 65-85% of cis-PA and 20-100 nm of fibre diameter.
出处
《应用化学》
CAS
CSCD
北大核心
1989年第3期87-89,共3页
Chinese Journal of Applied Chemistry
关键词
聚乙炔
聚合溶剂
高聚物导体
Polyacetylene
Polymerization
solvents
High polymeric conductor
Physical property
