Ho Chun-Chih, Wu Shang-Jung, Lin Shih-Hsiang, Darling Seth B, Su Wei-Fang
Department of Materials Science and Engineering, National Taiwan University, Taipei, 106-17, Taiwan.
Center for Nanoscale Materials, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, USA.
Macromol Rapid Commun. 2015 Jul;36(14):1329-35. doi: 10.1002/marc.201500161. Epub 2015 May 21.
A facile approach is reported to process rod-coil block copolymers (BCPs) into highly ordered nanostructures in a rapid, low-energy process. By introducing a selective plasticizer into the rod-coil BCPs during annealing, both the annealing temperature and time to achieve thermodynamic equilibrium and highly ordered structures can be decreased. This process improvement is attributed to enhanced chain mobility, reduced rod-rod interaction, and decreased rod-coil interaction from the additive. The novel method is based on kinetically facilitating thermodynamic equilibrium. The process requires no modification of polymer structure, indicating that a wide variety of desired polymer functionalities can be designed into BCPs for specific applications.
据报道，一种简便的方法可在快速、低能量的过程中将棒-线圈嵌段共聚物（BCP）加工成高度有序的纳米结构。通过在退火过程中向棒-线圈BCP中引入选择性增塑剂，可以降低实现热力学平衡和高度有序结构所需的退火温度和时间。这种工艺改进归因于添加剂增强了链的流动性、减少了棒-棒相互作用以及降低了棒-线圈相互作用。该新方法基于动力学促进热力学平衡。该过程无需对聚合物结构进行改性，这表明可以为特定应用设计多种所需的聚合物功能并将其引入BCP中。
