The objective of the present work is to synthesize three different types of cardanol based benzoxazines such as cardanol-{1,4-bis(4-aminophenoxy)ethane}benzoxazine (CBAE₂Bz), cardanol-{1,4-bis(4-aminophenoxy)butane} benzoxazine (CBAE₄Bz) and cardanol-{1,4-bis(4-aminophenoxy)octane}benzoxazine (CBAE₈Bz) by varying aliphatic ether link chain length through solventless method. The benzoxazines obtained with varying chain length were converted in to three different types of composites using paraphenylenediamine (PPDA) functionalized gaphene oxide (f-GO) as nano-reinforcement with varying weight percentage and were characterized by different analytical techniques. The molecular structure of the monomers was confirmed from Fourier transform infrared (FTIR) spectroscopy, ¹HNMR, ¹³C NMR and MALDI mass. Data obtained from thermal studies infer that the prepared composites possess good thermal stability and enhanced values of Tg with respect to weight percent of functionalized graphene oxide content. However, the values of thermal stability, Tg, dielectric constant and dielectric loss were marginally decreased with respect to increase in length of the spacer aliphatic chain. The SEM and TEM studies confirm the homogeneous dispersion and single layer thickness of graphene sheet, respectively. The feasibility of usage of f-GO/PCAE₂Bz composite in both gram positive bacteria (Bacillus subtilis, Staphylococcus aureus) and gram negative bacteria (Pseudomonas aeruginosa, Escherichia coli) environments were checked and the results obtained were discussed. Further, third-order NLO properties of open and closed aperture Z–scan results conclude that GO doped bio-resource based composites exhibit saturable absorption and self-defocusing type optical non-linearity. The third-order NLO susceptibility (χ³) of GO doped bio-resource based composites are increased with respect to quantity of reinforcement of GO to bio-based polymer. The maximum value of 1.03X 10⁻⁴ esu was observed and this nonlinearity is thermal in nature. Thus, the prepared composites may find wide range of applications in diverse surrounding conditions.

本工作的目的是合成三种不同类型的基于腰果酚的苯并恶嗪，例如腰果酚-{1,4-双（4-氨基苯氧基）乙烷}苯并恶嗪（CBAE ₂ Bz），腰果酚-{1,4-bis（4 -氨基苯氧基）丁烷}苯并恶嗪（CBAE ₄ Bz）和腰果酚-{1,4-双（4-氨基苯氧基）辛烷}苯并恶嗪（CBAE ₈ Bz），通过无溶剂方法改变脂肪族醚的链长。具有不同链长度所得到的苯并恶嗪转化在三种不同类型的使用对苯二胺复合物（PPDA）官能gaphene氧化物（˚F-GO）是具有不同重量百分比的纳米增强材料，并通过不同的分析技术进行了表征。单体的分子结构由傅里叶变换红外（FTIR）光谱，¹ HNMR，¹³ C NMR和MALDI质量确认。从热学研究获得的数据推断，相对于官能化氧化石墨烯含量的重量百分比，所制备的复合材料具有良好的热稳定性和提高的Tg值。然而，相对于间隔基脂族链的长度增加，热稳定性，Tg，介电常数和介电损耗的值略有降低。SEM和TEM研究分别证实了石墨烯片材的均匀分散和单层厚度。使用f的可行性检查革兰氏阳性菌（枯草芽孢杆菌，金黄色葡萄球菌）和革兰氏阴性菌（铜绿假单胞菌，大肠杆菌）环境中的-GO / PCAE ₂ Bz复合物，并讨论所得结果。此外，开孔和闭孔Z扫描结果的三阶NLO性质得出结论，GO掺杂的基于生物资源的复合材料表现出饱和的吸收和自散焦型光学非线性。三阶磁化率NLO（χ ³ GO的）掺杂的生物资源基复合材料相对于增加至GO的加强的量基于生物的聚合物。最大值1.03X 10 ^-4 观察到了esu，这种非线性本质上是热的。因此，制备的复合材料可在各种周围条件下找到广泛的应用。