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Modified crystalline structure of silane-crosslinked polyethylene in the proximity of nanodiamonds
- 1.0458513 - ÚMCH 2017 RIV DE eng J - Journal Article
Roumeli, E. - Brus, Jiří - Policianová, Olivia - Chrissafis, K. - Bikiaris, D. N.
Modified crystalline structure of silane-crosslinked polyethylene in the proximity of nanodiamonds.
Macromolecular Materials and Engineering. Roč. 301, č. 4 (2016), s. 441-450. ISSN 1438-7492. E-ISSN 1439-2054
R&D Projects: GA ČR(CZ) GA13-29009S
Institutional support: RVO:61389013
Keywords : crosslinked polyethylene * crystalline conformation * deformation
Subject RIV: JI - Composite Materials
Impact factor: 2.863, year: 2016
The introduction of nanodiamond particles (NDs) in silane-crosslinked polyethylene is found to lead to a notable and systematic deformation of the polymer unit cell. X-ray diffraction evidence of the existence of a modified crystalline structure in the bulk of the polymer due to the presence of NDs is reported here for the first time. The covalent bonding between NDs and the surrounding macromolecular chains may support that the excessive local stress field ultimately distorts the polymer conformation, yielding a new distorted but still crystalline interface. Supporting data from solid-state NMR experiments confirm the existence of a modified crystalline interface of about 1–2 nm in all the nanocomposite materials.
Permanent Link: http://hdl.handle.net/11104/0258793
Number of the records: 1