Nanocrystals cellulose (CNC) has been used in studies as biotemplate to improve the electronic properties of conjugated polymers (CP) increasing their molecular orientation. This study demonstrates the in situ grafting of the CNC surface esterified with 3-thiophenetic acid (3TAA) during the oxidative polymerization of 3-hexylthiophene. The surface modification of the CNC was evidenced by the presence of the band with an absorption peak at 1737 cm⁻¹ in the infrared region and the chemical displacement at 157 ppm of the ¹³C NMR, assigned to ester group carbon. The influence of cellulose nanocrystals in the molecular organization of the CP was studied by Ultraviolet-visible Spectroscopy (UV–vis) and Cyclic Voltammetry (CV). The lower band gap energy and anodic peak potential observed for the nanocomposite elaborated with 10 wt% CNC3TAA suggest the influence of nanocrystals on the increase in planarity of P3HT macromolecular chains, decreasing the energy expenditure in the oxidative process of the conjugated polymer.

纳米晶纤维素（CNC）已在研究中用作生物模板，以改善共轭聚合物（CP）的电子性能，从而增加其分子取向。这项研究表明在3-己基噻吩氧化聚合过程中，用3-噻吩酸（3TAA）酯化的CNC表面进行了原位接枝。CNC的表面改性是通过用吸收峰带的存在下，在1737厘米证明^-1在157 ppm为单位的在红外区域和化学位移¹³13 C NMR，归属于酯基碳。纤维素纳米晶体对CP分子组织的影响已通过紫外可见光谱（UV-vis）和循环伏安法（CV）进行了研究。用10 wt％CNC3TAA精制的纳米复合材料观察到的较低的带隙能和阳极峰电位表明，纳米晶体对P3HT大分子链平面度增加的影响，减少了共轭聚合物氧化过程中的能量消耗。