Multilayer articles and methods of making

A multilayer article comprising:

• a stack (A-B)n of n layer units A-B, where n is greater than or equal to 64, each layer unit A-B comprising a first nanolayer A and a second nanolayer B overlying the first nanolayer A, and where the stack (A-B)n has an ABAB repeating pattern;
• and
• wherein:
• the first nanolayer A of the layer units comprises a heterogeneous blend;
• the second nanolayer B of the layer units comprising a homogeneous material;
• wherein, at 260° C., the heterogeneous blend has a first melt viscosity η.sub.1 and the homogenous material has a second melt viscosity η.sub.2, where |η.sub.1-n.sub.2|/η.sub.1 is from greater than 0 to 1.25;
• a ratio of a thickness of the first nanolayer A to a thickness of the second nanolayer B is from 90:10 to 10:90;
• an overall thickness of the stack (A-B)n is greater than 1000 nanometers;
• and
• the multilayer article has a bulk haze of less than 20, as measured by ASTM D1003.