在低于有序-无序转变温度下进行区域退火的嵌段共聚物薄膜中的取向有序。

Orientational order in block copolymer films zone annealed below the order--disorder transition temperature.

作者信息

Berry Brian C, Bosse August W, Douglas Jack F, Jones Ronald L, Karim Alamgir

机构信息

Polymers Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8541, USA.

出版信息

Nano Lett. 2007 Sep;7(9):2789-94. doi: 10.1021/nl071354s. Epub 2007 Aug 11.

DOI:10.1021/nl071354s

PMID:17691851

Abstract

We report measurements of rapid ordering and preferential alignment in block copolymer films zone annealed below the order-disorder transition temperature. The orientational correlation lengths measured after approximately 5 h above the glass-transition temperature ( approximately 2 microm) were an order of magnitude greater than that obtained under equivalent static annealing. The ability to rapidly process polymers with inaccessible order-disorder transition temperatures suggests zone annealing as a route toward more robust nanomanufacturing methods based on block copolymer self-assembly.

摘要

我们报告了在低于有序-无序转变温度下进行区域退火的嵌段共聚物薄膜中快速有序化和优先取向的测量结果。在高于玻璃化转变温度（约2微米）大约5小时后测得的取向相关长度比在等效静态退火下获得的长度大一个数量级。能够快速处理具有无法达到的有序-无序转变温度的聚合物表明区域退火是一种通向基于嵌段共聚物自组装的更强大纳米制造方法的途径。