DC pole | Wartość | Język |
dc.contributor.author | Tarnacka, Magdalena | - |
dc.contributor.author | Jurkiewicz, Karolina | - |
dc.contributor.author | Hachuła, Barbara | - |
dc.contributor.author | Wojnarowska, Żaneta | - |
dc.contributor.author | Wrzalik, Roman | - |
dc.contributor.author | Talik, Agnieszka | - |
dc.contributor.author | Maksym, Paulina | - |
dc.contributor.author | Kamiński, Kamil | - |
dc.contributor.author | Paluch, Marian | - |
dc.date.accessioned | 2020-11-26T10:59:54Z | - |
dc.date.available | 2020-11-26T10:59:54Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | "Macromolecules" (2020), iss. 22, s. 10225-10233 | pl_PL |
dc.identifier.issn | 1520-5835 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/17344 | - |
dc.description.abstract | We examined the behavior of poly(mercaptopropyl)methylsiloxane
(PMMS), characterized by a polymer chain backbone of alternate
silicon and oxygen atoms substituted by a polar pendant group able to form
hydrogen bonds (−SH moiety), by means of infrared (FTIR) and dielectric
(BDS) spectroscopy, differential scanning calorimetry (DSC), X-ray diffraction
(XRD), and rheology. We observed that the examined PMMS forms relatively
efficient hydrogen bonds leading to the association of chains in the form of
ordered lamellar-like hydrogen-bonded nanodomains. Moreover, the recorded
mechanical and dielectric spectra revealed the presence of two relaxation
processes. A direct comparison of collected data and relaxation times extracted
from two experimental techniques, BDS and rheology, indicates that they
monitor different types of the mobility of PMMS macromolecules. Our
mechanical measurements revealed the presence of Rouse modes connected to
the chain dynamics (slow process) and segmental relaxation (a faster process),
whereas in the dielectric loss spectra we observed two relaxation processes related most likely to either the association−dissociation
phenomenon within lamellar-like self-assemblies or the sub-Rouse mode (α′-slower process) and segmental (α-faster process)
dynamics. Data presented herein allow a better understanding of the peculiar dynamical properties of polysiloxanes and associating
polymers having strongly polar pendant moieties. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Fourier transform infrared spectroscopy | pl_PL |
dc.subject | Physical and chemical processes | pl_PL |
dc.subject | Insulators | pl_PL |
dc.subject | Silicones | pl_PL |
dc.subject | Polymers | pl_PL |
dc.title | Correlation between locally ordered (hydrogen-bonded) nanodomains and puzzling dynamics of polymethysiloxane derivative | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.identifier.doi | 10.1021/acs.macromol.0c01289 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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