Benzocyclobutene resins play an important role in microelectronic industry owing to their excellent physical and chemical properties. In our work, three novel benzocyclobutene-terminated imide monomers were synthesized via the reaction of 1-aminomethyl benzocyclobutene with various aromatic dianhydrides. The monomers exhibited good processability with superior solubility and low melting points (< 163.5 °C), and they showed similar curing behaviors under N₂ with an exothermic peak in differential scanning calorimetry (DSC) curves ranging from 217.3 °C to 287.7 °C. Highly crosslinked resins obtained at 150-300 °C exhibited superior tensile strength (> 74.3 MPa), outstanding thermal stability (T_d > 466 °C in N₂), high glass transition temperature (> 278 °C), high storage modulus (> 3.25 GPa at 30 °C), low dielectric constant (< 3.07 at 1 MHz) and good water resistance (the water absorption was below 0.81 % after immersed in water for 24 h and the water contact angle was higher than 86.6°). Atomic force microscopy demonstrated the perfect uniformity and planarity of the cured films.

苯并环丁烯树脂由于其优异的物理和化学性能，在微电子工业中起着重要的作用。在我们的工作中，通过1-氨基甲基苯并环丁烯与各种芳香族二酐的反应合成了三种新型的苯并环丁烯封端的酰亚胺单体。单体表现出良好的可加工性，具有优异的溶解性和低熔点（<163.5°C），并且在N ₂下表现出相似的固化行为，并在217.3°C至287.7°C的差示扫描量热（DSC）曲线中出现放热峰。在150-300°C下获得的高度交联的树脂表现出优异的拉伸强度（> 74.3 MPa），出色的热稳定性（N _2中的T _d > 466°C）），高玻璃化转变温度（> 278°C），高储能模量（在30°C时> 3.25 GPa），低介电常数（在1 MHz时<3.07）和良好的耐水性（浸泡后吸水率低于0.81％在水中放置24小时，水接触角大于86.6°。原子力显微镜证明了固化膜的完美均匀性和平面性。