Spreading one big page content over multiple blog posts

I redesigned my site a bit with more structured content on homepage. This meant that a lot of the old chapters (h2) were not anymore needed there. Instead of throwing them away I cut the text and turned each chapter into a blog post which is scheduled one per month and a few I`ve already uploaded on blog. Any risk here? The content is still unique but moved from one place of the site, spread over multiple blog posts. Maybe Google somehow will see duplicate content ?