Two naphthyl-based quaternary ammonium surfactants Naph-GS and Naph-MS were synthesized by reaction of bis(chloromethyl)naphthalene and chloromethyl naphthalene with N, N-dimethyl long-chain alkyl tertiary amine. The purified products were characterized by FT-IR and ESI-HRMS. The critical micelle concentration and surface tension (γ_CMC) at the critical micelle concentration (CMC) of Naph-MS and Naph-GS are 3.70 mmol/L, 27.90 mN/m; 0.89 mmol/L and 31.60 mN/m, respectively. The CMC of Naph-MS is about four times higher than that of Naph-GS. The sizes of most micelles of Naph-MS and Naph-GS aqueous solution at 1.1 CMC are both <1 nm. While at the concentration of 11 CMC, most of the Naph-MS, the Naph-GS micelles aggregate forming particles with an average size of 1.2 nm and 10 nm, respectively. The Naph-MS and Naph-GS were used to promote the chloromethylation reaction of naphthalene. The conversion of naphthalene was 77% when the reaction was catalyzed by Naph-MS (2.5 mol% of naphthalene at 48 mmol/L) at mole ratio of naphthalene/paraformaldehyde/NaCl/H₂SO₄ being 1.0:1.0:1.7:6.3 at 70 °C for 12 h. At the same condition, the conversion of naphthalene was 82% when the reaction was promoted by Naph-GS (0.53 mol% of naphthalene at 10 mmol/L). When the mole ratio of naphthalene/paraformaldehyde was increased to 1.25, the conversion of naphthalene increased to 90%, and the positioning selectivity (1-chloromethyl to 2-chloromethyl) is 94.8%. The gemini surfactant Naph-GS has better catalytic performance than conventional Naph-MS in the chloromethylation of naphthalene. The inorganic aqueous solution can be recycled by simple separation, and the conversion of naphthalene can still remain at 85% after 5 cycles.

通过双（氯甲基）萘和氯甲基萘与N，N-二甲基长链烷基叔胺的反应合成了两种基于萘基的季铵盐表面活性剂Naph-GS和Naph-MS 。通过FT-IR和ESI-HRMS表征纯化的产物。临界胶束浓度和表面张力（_γCMC）在Naph-MS和Naph-GS的临界胶束浓度（CMC）为3.70 mmol / L，27.90 mN / m; 分别为0.89 mmol / L和31.60 mN / m。Naph-MS的CMC大约是Naph-GS的CMC的四倍。在1.1 CMC下，大多数Naph-MS和Naph-GS水溶液的胶束尺寸均小于1 nm。当浓度为11 CMC时，大多数Naph-MS，Naph-GS胶束聚集形成平均粒径分别为1.2 nm和10 nm的颗粒。Naph-MS和Naph-GS用于促进萘的氯甲基化反应。当以萘/多聚甲醛/ NaCl / H ₂ SO _4的摩尔比通过Naph-MS（2.5 mol％的萘，在48 mmol / L）催化反应时，萘的转化率为77％在70°C下加热1.0：1.0：1.7：6.3 12小时。在相同条件下，当用Naph-GS促进反应时萘的转化率为82％（萘在10 mmol / L时为0.53 mol％）。当萘/多聚甲醛的摩尔比增加到1.25时，萘的转化率增加到90％，并且定位选择性（1-氯甲基对2-氯甲基）为94.8％。双相表面活性剂Naph-GS在萘的氯甲基化中具有比常规Naph-MS更好的催化性能。可以通过简单的分离来回收无机水溶液，并且在5个循环后萘的转化率仍可以保持在85％。