State Key Laboratory of Chemistry Engineering, East China University of Science and Technology, Shanghai, PR China 200237.
Langmuir. 2011 Jul 5;27(13):8365-70. doi: 10.1021/la200073v. Epub 2011 Jun 8.
A novel fluorinated silane-functional benzoxazine monomer is synthesized, and the structure is characterized by FTIR and (1)H NMR. Chemical bonds Si-O-Si linkage between the benzoxazine monomer and the substrate are identified through the variation of water contact angles. The low surface free energy calculation and mechanism of the benzoxazine polymer films are proved through contact angle measurement and FTIR. The film formation property and thermal stability of the polybenzoxazine are also investigated. These results clearly show that this novel polybenzoxazine can not only bond to the substrate but also possess even lower surface free energy which is 15.5 mJ/m(2). The polymer also possesses well thermal stability with a glass transition temperature of 188 °C and the 5% weight loss temperatures of 276 °C.
合成了一种新型氟化硅烷功能化苯并恶嗪单体，并通过傅里叶变换红外光谱（FTIR）和（1）H 核磁共振（NMR）对其结构进行了表征。通过水接触角的变化，确定了苯并恶嗪单体与基底之间的 Si-O-Si 键合。通过接触角测量和傅里叶变换红外光谱（FTIR），计算并证明了苯并恶嗪聚合物薄膜的低表面自由能及其机制。还研究了聚苯并恶嗪的成膜性能和热稳定性。这些结果清楚地表明，这种新型聚苯并恶嗪不仅可以与基底结合，而且具有更低的表面自由能，为 15.5 mJ/m²。该聚合物还具有良好的热稳定性，玻璃化转变温度为 188°C，5%重量损失温度为 276°C。
