Sonal Bhadauriya, Xiaoteng Wang, Asritha Nallapaneni, Ali Masud, Zongyu Wang, Jaejun Lee, Michael R Bockstaller, Abdullah M Al-Enizi, Charles H Camp, Christopher M Stafford, Jack F Douglas, Alamgir Karim
Surface-textured polymer nanocomposite (PNC) films are utilized in many device applications, and therefore understanding the relaxation behavior of such films is important. By extending an in situ wrinkle relaxation method, we observed that the thermal stability of wrinkled PNC films, both above and below the glass transition temperature ( T g ), is proportional to a film's nanoparticle (polymer grafted and bare) concentration, with a slope that changes sign at a compensation temperature ( T comp ) that is determined to be in the vicinity of the film's T g ...
February 10, 2021: Nano Letters