Exploiting Molecular Weight Distribution Shape to Tune Domain Spacing in Block Copolymer Thin Films

• Published in: Journal of the American Chemical Society Vol. 140; no. 13; pp. 4639 - 4648
• Main Authors: Gentekos, Dillon T, Jia, Junteng, Tirado, Erika S, Barteau, Katherine P, Smilgies, Detlef-M, DiStasio, Robert A, Fors, Brett P
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 04.04.2018; American Chemical Society (ACS)
• Subjects: chemical composition; composite polymers; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Lactates - chemistry; least squares; Molecular Weight; Polyethylene Glycols - chemistry; polymerization; statistical models; Surface Properties

We report a method for tuning the domain spacing (D sp) of self-assembled block copolymer thin films of poly­(styrene-block-methyl methacrylate) (PS-b-PMMA) over a large range of lamellar periods. By modifying the molecular weight distribution (MWD) shape (including both the breadth and skew) of the...