How to make PVDF beta-phase crystal?

Hi everyone,

I just started working on Materals Studio and have to analyze the enrgyband of PVDF.

First of all, I need to describe the PVDF crystal. But it's not in the library, so I have to make it by myself.

I know how to make a single polymer chain. 

But I couldn't find the way to build the crystalized polymer, which is described in the attatced file.

How can I get started making crystalized polymer? With polymer builder, or build crystal?

Thanks