总而言之,将顺式HBPA与异构体HBPA分离,并且将两个新型的单体HBPADA和Diamine F轻轻合成。通过两步热弹性化获得了一系列含有顺式-HBPA单元的聚酰亚胺。PI (1 6) exhibited T g and T 5% (in N 2 ) in range of 214 266 °C (DSC) and 386 407 °C respectively, and T S in the range of 85 122 MPa, indicating that the introduction of alicyclic cis -HBPA fragments did not deteriorate their thermal and mechanical properties compared with the aromatic PI 7.重要的是,所有聚酰亚胺膜在450 nm时的透射率高达86%,其良好的综合性能,尤其是出色的透明度和加工性,加上低介电常数,并且良好的机械性能使这些聚合物成为OptoElectronic设备式构造。
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