Can the individual block in block copolymer be made chromatographically “invisible” at the critical condition of its corresponding homopolymer?

Can the individual block in block copolymer be made chromatographically “invisible” at the critical condition of its corresponding homopolymer?

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 54, Issue 14, 21 June 2013, Pages 3730-3736

Xiaoping Yang, Yutian Zhu, Yongmei Wang,