Synthesis of thermally stable aromatic poly(spiroorthocarbonate)s having a <i>Cardo</i>
or bent structure
作者:Masaki Moritsugu、Ryota Seto、Kozo Matsumoto、Takeshi Endo
DOI:10.1002/pola.27991
日期:2016.5.15
Novel poly(spiroorthocarbonate)s [poly(SOC)]s having a Cardo or bent structure were synthesized by polycondensation of several bis‐catechols having fluorene (BCFL), spirobisindane (BCSPI), or spirobischromane (BCSPC) in the structure with 2,2,6,6‐tetrachlorobenzo[1,2‐d:4,5‐d’]bis[1,3]dioxole (4ClBD). Synthesis of poly(SOC)s was confirmed by NMR and IR spectrometry. The poly(SOC)s obtained from BCFL
新型的具有Cardo或弯曲结构的聚螺碳酸酯[poly(SOC)]是通过在结构中具有芴(BCFL),螺双茚满(BCSPI)或螺双铬烷(BCSPC)的几种双邻苯二酚缩聚而合成的, 2,6,6-四氯苯并[1,2- d:4,5- d']双[1,3]二恶唑(4ClBD)。通过NMR和IR光谱法确认了聚(SOC)的合成。从BCFL或BCSPC获得的poly(SOC)可溶于常见的有机溶剂。差示扫描量热法(DSC)在50–300°C的范围内未检测到poly(SOC)s的玻璃化转变温度。发现聚(SOC)的10wt%分解温度高于400℃。这些结果表明聚(SOC)具有高的热稳定性。通过旋涂法,可具有可溶性聚(SOC)以在玻璃板上形成膜。将所得到的聚合物膜分别为0.2 μ在厚度米与光学波长范围透光率达95%。这些结果表明Cardo弯曲的结构可能会阻塞结构主链的堆积,从而提高聚合物的溶解度,增加透明度并增强SOC的热稳定性。©2015