Browsing by Author "8e32ba10-302e-4484-9cdb-2b79a87dc663"
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Counterbalance between Surface and Confinement Effects As Studied for Amino-Terminated Poly(propylene glycol) Constraint in Silica Nanopores
Kiprop Kipnusu, Wycliffe; M. Elmahdy, Mahdy; Elsayed, Mohamed; Krause-Rehberg, Reinhard; Kremer, Friedrich American Chemical Society (2019)Broadband dielectric spectroscopy (BDS) and orthopositronium annihilation lifetime spectroscopy (PALS) are combined to study the molecular dynamics and the free volume of poly(propylene glycol) terminated with amino end ... -
Glassy dynamics of two poly(ethylene glycol) derivatives in the bulk and in nanometric confinement as reflected in its inter- and intra-molecular interactions
Jasiurkowska-Delaporte, Małgorzata; Kossack, Wilhelm; Kiprop Kipnusu, Wycliffe; Sangoro, Joshua; Iacob, Ciprian; Kremer, Friedrich AIP Publishing (2018-08)The inter- and intra-molecular interactions as they evolve in the course of glassy solidification are studied by broadband dielectric—and Fourier-transform infrared—spectroscopy for oligomeric derivatives of poly(ethylene ...