Biomimic hybrid polymer networks based on casein and poly(methacrylic acid). Case study: Ni2+removal

2016 ◽  
Vol 4 (5) ◽  
pp. 1680-1693 ◽  
Author(s):  
P. M. Spasojevic ◽  
V. V. Panic ◽  
M. D. Jovic ◽  
J. Markovic ◽  
C. van Roost ◽  
...  
Keyword(s):  
Methacrylic Acid ◽  
Polymer Networks ◽  
Functional Materials ◽  
Hybrid Polymer ◽  
Natural Materials

Mimicking the excellence of natural materials presents an attractive route in the synthesis of advanced functional materials.

scholarly journals Nonlinear mechanics of hybrid polymer networks that mimic the complex mechanical environment of cells

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Maarten Jaspers ◽  
Sarah L. Vaessen ◽  
Pim van Schayik ◽  
Dion Voerman ◽  
Alan E. Rowan ◽  
...  
Keyword(s):  
Polymer Networks ◽  
Hybrid Polymer ◽  
Nonlinear Mechanics ◽  
Mechanical Environment

scholarly journals Traditional Architecture in Romanian Philately (V): Case Study Regarding Households in Nereju, Ostrov, Sălciua de Jos, Șanț and Sârbova

2021 ◽  
pp. 18-28
Author(s):  
Bogdan-Vasile Cioruța ◽  
Alexandru Leonard Pop
Keyword(s):  
The Other ◽  
Traditional Architecture ◽  
Natural Materials ◽  
To Come ◽  
The Moment

Traditional architecture is integrated into the landscape, is adapted to the environment, and uses local natural materials. These are the general features. In fact, in each area there are their own and recognizable elements that ensure the local specificity. In this context, the present study aims to emphasize the beauty of traditional Romanian architecture in terms of philately. It is desired to expose the architectural specifics from the other five areas. This time it is the turn of illustrated postcards and other philatelic effects from Nereju (Vrancea), Ostrov (Constanța), Sălciua de Jos (Alba), Șanț (Bistrița-Năsăud) and Sârbova (Timiș) to come to the fore. What do these households have in common? Each of them suggests the idea that the new architecture should not imitate the old one. But it must respect the local specificity, assuming at the same time the moment when it was created. There is no need for constructions that imitate the architecture of 100-150 years ago (shown in the philatelic effects exposed), but for constructions that respect the spirit of the place.

scholarly journals Recent Trends in Applying Ortho-Nitrobenzyl Esters for the Design of Photo-Responsive Polymer Networks

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2777 ◽  
Author(s):  
Angelo Romano ◽  
Ignazio Roppolo ◽  
Elisabeth Rossegger ◽  
Sandra Schlögl ◽  
Marco Sangermano
Keyword(s):  
Chemical Structure ◽  
Light Exposure ◽  
Polymer Networks ◽  
Functional Materials ◽  
Polymer Coatings ◽  
Thin Polymer Films ◽  
Future Perspectives ◽  
Nitrobenzyl Alcohol ◽  
Thin Polymer ◽  
Recent Trends

Polymers with light-responsive groups have gained increased attention in the design of functional materials, as they allow changes in polymers properties, on demand, and simply by light exposure. For the synthesis of polymers and polymer networks with photolabile properties, the introduction o-nitrobenzyl alcohol (o-NB) derivatives as light-responsive chromophores has become a convenient and powerful route. Although o-NB groups were successfully exploited in numerous applications, this review pays particular attention to the studies in which they were included as photo-responsive moieties in thin polymer films and functional polymer coatings. The review is divided into four different sections according to the chemical structure of the polymer networks: (i) acrylate and methacrylate; (ii) thiol-click; (iii) epoxy; and (iv) polydimethylsiloxane. We conclude with an outlook of the present challenges and future perspectives of the versatile and unique features of o-NB chemistry.

Chitosan, itaconic acid and poly(vinyl alcohol) hybrid polymer networks of high degree of swelling and good mechanical strength

2010 ◽  
Vol 59 (5) ◽  
pp. 686-694 ◽  
Author(s):  
Nedeljko B Milosavljević ◽  
Ljiljana M Kljajević ◽  
Ivanka G Popović ◽  
Jovanka M Filipović ◽  
Melina T Kalagasidis Krušić
Keyword(s):  
Mechanical Strength ◽  
Itaconic Acid ◽  
Vinyl Alcohol ◽  
Polymer Networks ◽  
Poly Vinyl Alcohol ◽  
Hybrid Polymer ◽  
Degree Of Swelling ◽  
High Degree

Amorphous Polymer Networks Combining Three Functionalities–Shape-memory, Biodegradability, and Drug Release

2009 ◽  
Vol 1190 ◽  
Author(s):  
Christian Wischke ◽  
Axel Thomas Neffe ◽  
Susi Steuer ◽  
Andreas Lendlein
Keyword(s):  
Drug Release ◽  
Shape Memory ◽  
Amorphous Polymer ◽  
Polymer Networks ◽  
Three Dimensional ◽  
Hydrolytic Degradation ◽  
Functional Materials ◽  
Controlled Drug Release ◽  
Diffusion Controlled ◽  
Shape Programming

AbstractShape-memory polymers are of high scientific and technological interest in the biomedical field, e.g., as matrix for self-anchoring implantable devices. In this study, two different star-shaped copolyester tetroles, semi-crystalline oligo[(-caprolactone)-co-glycolide]tetrol (oCG) and amorphous oligo[(rac-lactide)-co-glycolide]tetrol (oLG), were synthesized and subsequently crosslinked by a low molecular weight diisocyanate resulting in copolyester urethane networks (N-CG, N-LG). Both networks could be loaded with model drugs and a diffusion controlled release of the drugs was observed without any effect on the mass loss as measure of hydrolytic degradation. However, the N-CG network’s capability of shape programming was disturbed as the crystallinity of the precursors got lost in the complex three dimensional architecture after crosslinking. By contrast, amorphous N-LG network showed an excellent shape-memory capability with a switching temperature around 36 °C corresponding to their glass transition temperature. This led to triple-functional materials combining biodegradability, shape-memory, and controlled drug release.

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