Results 31 to 40 of about 194,083 (306)

Copper mediated controlled radical copolymerization of styrene and2-ethylhexyl acrylate and determination of their reactivity ratios.

Frontiers in Chemistry, 2014
Copolymerization is an important synthetic tool to prepare polymers with desirable combination of properties which are difficult to achieve from the different homopolymers concerned.
Bishnu Prasad Koiry, Nikhil Kumar Singha
doaj   +1 more source

MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids

Materials Research Express, 2020
In the present study, the negative real permittivity behavior of a copolyester of bisphenol-A with terephthalic acid and isophthalic acid (PAr) containing 1.5 to 7.5 wt% multi-walled carbon nanotubes (MWCNTs) have been investigated in detail.
Zeynep Güven Özdemir, Dolunay Şakar Daşdan, Pelin Kavak, Jürgen Pionteck, Petra Pötschke, Brigitte Voit, Banu Süngü Mısırlıoğlu   +6 more
doaj   +1 more source

Aperiodic Copolymers

ACS Macro Letters, 2014
Current polymer terminology only describes very simple copolymer structures such as block, graft, alternating periodic, or statistical copolymers. This restricted vocabulary implies that copolymers exhibit either segregated (i.e., block and graft), regular (i.e., alternating and periodic), or uncontrolled (i.e., statistical or random) comonomer ...
openaire   +2 more sources

Structure-property relationships for polycarboxylate ether superplasticizers by means of RAFT polymerization

, 2019
Hypothesis: Polycarboxylate ether (PCE) comb-copolymers are widely used as water reducing agents in the concrete industry while maintaining a high fluidity via the polymer adsorption to the cement particles.
De Schutter, Geert, El Cheikh, Khadija, Hoogenboom, Richard, Lesage, Karel, Muhammad, Metwally, Xu, Xiaowen   +5 more
core   +1 more source

Influence of PHA Substrate Surface Characteristics on the Functional State of Endothelial Cells

Journal of Functional Biomaterials, 2023
The needs of modern regenerative medicine for biodegradable polymers are wide and varied. Restoration of the viability of the vascular tree is one of the most important components of the preservation of the usefulness of organs and tissues.
Galina A. Ryltseva, Alexey E. Dudaev, Natalia G. Menzyanova, Tatiana G. Volova, Natalia A. Alexandrushkina, Anastasia Yu. Efimenko, Ekaterina I. Shishatskaya   +6 more
doaj   +1 more source

New Advances in Biomedical Application of Polymeric Micelles

Pharmaceutics, 2022
In the last decade, nanomedicine has arisen as an emergent area of medicine, which studies nanometric systems, namely polymeric micelles (PMs), that increase the solubility and the stability of the encapsulated drugs.
Ana Figueiras, Cátia Domingues, Ivana Jarak, Ana Isabel Santos, Ana Parra, Alberto Pais, Carmen Alvarez-Lorenzo, Angel Concheiro, Alexander Kabanov, Horacio Cabral, Francisco Veiga   +10 more
doaj   +1 more source

Phase Behavior of Melts of Diblock-Copolymers with One Charged Block [PDF]

, 2019
In this work we investigated the phase behavior of melts of block-copolymers with one charged block by means of dissipative particle dynamics with explicit electrostatic interactions.
Chertovich, Alexander V., Gavrilov, Alexey A., Potemkin, Igor I.   +2 more
core   +2 more sources

Impacts of Photooxidation on Commercially Available Homo and Copolymers of Polypropylene on Their Microstructure and Mechanics: A Cross‐Sectional Analysis

Nano Select
Polyolefin degradation is widely studied to assess the lifetime of packaging materials. In this work, a combination of bulk (DSC, GPC, 13C‐NMR, XRD), surface (FTIR) and cross‐sectional characterization (Raman spectroscopy and nanoindentation) was used to
Marta Chiapasco, Michele Valsecchi, Gavin Hill, Christopher Wallis, Alexandra E. Porter, Finn Giuliani   +5 more
doaj   +1 more source

Synthesis, Purification and Characterization of Polymerizable Multifunctional Quaternary Ammonium Compounds

Molecules, 2019
Methacrylate analogs of quaternary ammonium salts functionalized with carboxylic (AMadh1 68.8% yield, AMadh2 53.2% yield) and methoxysilane (AMsil1 94.8% yield, AMsil2 36.0% yield) groups were synthesized via Menschutkin reaction.
Ugochukwu C. Okeke, Chad R. Snyder, Stanislav A. Frukhtbeyn   +2 more
doaj   +1 more source

Vinyl stilbazoles [PDF]

, 1986
Vinyl pyridines including vinyl stilbazole materials and vinyl styrylpyridine oligomer materials are disclosed. These vinylpyridines form copolymers with bismaleimides which copolymers have good fire retardancy and decreased brittleness.
Chen, Timothy S., Heimbuch, Alvin H., Hsu, Ming-Ta S., Parker, John A.   +3 more
core   +1 more source