Correction: Direct evidence of polar ordering and investigation on cythophilic properties of pyroelectrified polymer films by optical second harmonic generation analysis (Macromolecules (2017) 50:19 (7666-7671) DOI: 10.1021/acs.macromol.7b00794)

The first lines of the Introduction, starting from "Some dielectric materials" and ending with "emerging biotechnology applications.3,4", should be replaced by the following: Exposing nonconductive materials to intense electric fields can in several cases induce a temporary or permanent polarization, via alignment of polarizable units (e.g., molecular poling) or via localization of excess surface charges.1,2 A typical case is represented by ferroelectric crystals, characterized by the possibility of generating and reversing a permanent polarization through an externally applied electric field. Such a switchable polarization is at the basis of a variety of devices, whose applications include sensors, actuators, data storage, and emerging biotechnology applications.