Zhang Zhanpeng, Marson Ryan L, Ge Zhishen, Glotzer Sharon C, Ma Peter X
Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109-1078, USA.
Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-1078, USA.
Adv Mater. 2015 Jul 8;27(26):3947-52. doi: 10.1002/adma.201501329. Epub 2015 May 26.
Star-shaped polymers with varying arm numbers and arm lengths are synthesized, and self-assembled into microspheres, which are either smooth or fibrous on the nanoscale, and either nonhollow, hollow, or spongy on the microscale. The molecular architecture and functional groups determine the structure on both length scales. This exciting mechanistic discovery guides simultaneous control of both the nano- and microfeatures of the microspheres.
合成了具有不同臂数和臂长的星形聚合物,并将其自组装成微球,这些微球在纳米尺度上要么是光滑的,要么是纤维状的,在微米尺度上要么是实心的、空心的,要么是海绵状的。分子结构和官能团决定了这两个长度尺度上的结构。这一令人兴奋的机理发现为同时控制微球的纳米和微米特征提供了指导。