YANG Jian-guo1, GAO Li-li2, ZHENG Jian-xu1, et al. Study on gas sensing properties of PANI/PEG composite[J]. 2011, 30(4): 34-36. DOI: 10.13873/j.1000-97872011.04.035.
聚乙二醇掺杂聚苯胺复合材料气敏性能的研究
摘要
以聚乙二醇(PEG)为掺杂剂
过硫酸铵(APS)为引发剂
用一步乳液聚合法合成PAN/PEG复合物。通过控制变量法
考察了不同制备因素对PAN/PEG乳液稳定性和复合材料气敏性能的影响
优化得到合成过程中最佳实验参数:n(DBSA)/n(An)=1.0
n(APS)/n(An)=1.0
n(PEG)/n(An)=2
聚合时间为16 h。检测表明:该复合物在室温下对1000×10-6氨气的灵敏度达到43.8
而且
响应恢复时间较短。
Abstract
PAN/PEG composite is synthesized with polyethyleneglycol(PEG) as dopant and ammonium persulfate(APS) as initiator by one-step emulsion polymerization.The impact of different factors on the stability of PAN/PEG emulsion and gas sensing properties of composite are studied by controlling the variables.The optimum experimental parameters are obtained: n(DBSA)/n(An)=1.0
n(APS)/n(An)=1.0
n(PEG)/n(An)=2
polymerization time is 16h.The results indicate that the composite’s gas sensitivity reaches 43.8 to 1 000 ×10-6NH3 at room temperature