Toan Mai, Choi Jaehyouk, Ngo Hang Thi, Bae Jin-Young, Shin Seunghan, Kwon Kiok
Green and Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), Cheonan 31056, Republic of Korea.
School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Polymers (Basel). 2024 Dec 17;16(24):3504. doi: 10.3390/polym16243504.
Recent advancements in polymer materials have enabled the synthesis of bio-based monomers from renewable resources, promoting sustainable alternatives to fossil-based materials. This study presents a novel zwitterionic surfactant, SF, derived from 10-undecenoic acid obtained from castor oil through a four-step reaction, achieving a yield of 78%. SF has a critical micelle concentration (CMC) of 1235 mg/L, slightly higher than the commercial anionic surfactant Rhodacal DS-4 (sodium dodecyl benzene sulfonate), and effectively stabilizes monomer droplets, leading to excellent conversion and stable latex formation. The zwitterionic groups in SF enhance adhesion to hydrophilic substrates (glass, stainless steel, and skin). Films produced with SF exhibit outstanding water resistance, with only 18.48% water uptake after 1800 min, compared to 81% for the control using Rhodacal DS-4. Notably, SF maintains low water uptake across various concentrations, minimizing water penetration. Thus, the synthesized SF demonstrates improved adhesive properties and excellent water resistance in emulsion polymerization applications, highlighting its potential as a sustainable, high-performance alternative to petrochemical surfactants.
聚合物材料的最新进展使得能够从可再生资源合成生物基单体，从而推动了化石基材料的可持续替代方案。本研究提出了一种新型两性离子表面活性剂SF，它由蓖麻油中提取的10-十一碳烯酸经过四步反应制得，产率达到78%。SF的临界胶束浓度（CMC）为1235 mg/L，略高于市售阴离子表面活性剂Rhodacal DS-4（十二烷基苯磺酸钠），并且能有效稳定单体液滴，从而实现优异的转化率并形成稳定的胶乳。SF中的两性离子基团增强了对亲水性基材（玻璃、不锈钢和皮肤）的附着力。用SF制备的薄膜具有出色的耐水性，1800分钟后吸水率仅为18.48%，而使用Rhodacal DS-4的对照样品吸水率为81%。值得注意的是，SF在各种浓度下都保持低吸水率，最大限度地减少了水的渗透。因此，合成的SF在乳液聚合应用中表现出改进的粘合性能和优异的耐水性，突出了其作为石化表面活性剂的可持续、高性能替代品的潜力。
