Time-domain NMR in polyolefin research

V Litvinov, Y Men - Polymer, 2022 - Elsevier
Polyethylene's and polypropylenes are most studied polymers by different solid-state NMR
methods. Among various NMR methodologies used, time-domain proton NMR (TD-NMR) …

Influence of prereserved shish crystals on the structural evolution of ultrahigh-molecular weight polyethylene films during the hot stretching process

B Deng, L Chen, X Li, Z Wang - Macromolecules, 2022 - ACS Publications
Prereserved shish crystals and their influence on the macroscopic properties and structural
evolution of ultrahigh-molecular weight polyethylene (UHMWPE) films during the hot …

[图书][B] Polymer morphology: principles, characterization, and processing

Q Guo - 2016 - books.google.com
With a focus on structure-property relationships, this book describes how polymer
morphology affects properties and how scientists can modify them. The book covers …

A robust proton NMR method to investigate hard/soft ratios, crystallinity, and component mobility in polymers

A Maus, C Hertlein… - … Chemistry and Physics, 2006 - Wiley Online Library
An improved proton NMR method for the real‐time measurement of the hard/soft ratio or the
crystallinity, and the mobile‐fraction dynamics, in phase‐separated or semicrystalline …

Size-selective diffusion in nanoporous but flexible membranes for glucose sensors

H Uehara, M Kakiage, M Sekiya, D Sakuma… - Acs Nano, 2009 - ACS Publications
A series of nanoporous membranes prepared from polyethylene-block-polystyrene were
applied for size-selective diffusion of glucose and albumin molecules. Millimeter-sized test …

The effect of temperature and annealing on the phase composition, molecular mobility and the thickness of domains in high-density polyethylene

C Hedesiu, DE Demco, R Kleppinger, AA Buda… - Polymer, 2007 - Elsevier
Molecular mobility, the thickness of domains and the amount of rigid, semi-rigid, and soft
fractions of high-density polyethylene (HDPE) were characterized as a function of …

Crystalline/Amorphous Phase Structure and Molecular Mobility of Biodegradable Poly(butylene adipate-co-butylene terephthalate) and Related Polyesters

K Kuwabara, Z Gan, T Nakamura, H Abe… - …, 2002 - ACS Publications
Differential scanning calorimetry (DSC), atomic force microscopy (AFM), wide-angle X-ray
scattering (WAXD), and solid-state 13C NMR have been used to investigate the …

Disentangled melt of ultrahigh-molecular-weight polyethylene: fictitious or real?

V Litvinov, F Christakopoulos, PJ Lemstra - Macromolecules, 2024 - ACS Publications
There are two opposing views on the role of the melting of low-entangled polyethylenes on
the obtained entanglement density in the molten state and the time required for its …

Melting-induced evolution of morphology, entanglement density, and ultradrawability of solution-crystallized ultrahigh-molecular-weight polyethylene

F Christakopoulos, E Bersenev, S Grigorian… - …, 2021 - ACS Publications
The melting-induced change in the density of physical network junctions, which are formed
by chain entanglements and network junctions due to anchoring of chain segments to …

Restricted segmental mobility can facilitate medium-range chain diffusion: A NMR study of morphological influence on chain dynamics of polyethylene

YF Yao, R Graf, HW Spiess, S Rastogi - Macromolecules, 2008 - ACS Publications
The influence of the morphology on the local motion in the noncrystalline regions and chain
diffusion between crystalline and noncrystalline regions is studied in ultrahigh molecular …