scholarly journals 2D laser lithography on silicon substrates via photoinduced copper-mediated radical polymerization

2018 ◽  
Vol 54 (7) ◽  
pp. 751-754 ◽  
Author(s):  
Joachim Laun ◽  
Yana De Smet ◽  
Emma Van de Reydt ◽  
Alexander Krivcov ◽  
Vanessa Trouillet ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Polymer Brushes ◽  
Single Step ◽  
Silicon Substrates ◽  
Laser Lithography

A 2D laser lithography protocol for controlled grafting of polymer brushes in a single-step is presented.

Degradable Polymer Brushes Prepared via Surface-Initiated Controlled Radical Polymerization

2009 ◽  
Vol 42 (21) ◽  
pp. 8076-8081 ◽  
Author(s):  
Carl Riachi ◽  
Nicolas Schüwer ◽  
Harm-Anton Klok
Keyword(s):  
Radical Polymerization ◽  
Polymer Brushes ◽  
Controlled Radical Polymerization ◽  
Degradable Polymer

Synthesis of Methacrylic−Ferulic Acid Copolymer with Antioxidant Properties by Single-Step Free Radical Polymerization

2008 ◽  
Vol 56 (22) ◽  
pp. 10646-10650 ◽  
Author(s):  
Francesco Puoci ◽  
Francesca Iemma ◽  
Manuela Curcio ◽  
Ortensia I. Parisi ◽  
Giuseppe Cirillo ◽  
...  
Keyword(s):  
Free Radical ◽  
Ferulic Acid ◽  
Radical Polymerization ◽  
Antioxidant Properties ◽  
Free Radical Polymerization ◽  
Single Step ◽  
Acid Copolymer

Versatile procedure for site-specific grafting of polymer brushes on patchy particles via atom transfer radical polymerization (ATRP)

2016 ◽  
Vol 7 (16) ◽  
pp. 2858-2869 ◽  
Author(s):  
Bas G. P. van Ravensteijn ◽  
Willem K. Kegel
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Building Blocks ◽  
Atom Transfer ◽  
Site Specific ◽  
Patchy Particles

Combining chemically anisotropic colloids with Surface-Initiated ATRP enables for site-specific grafting of p(NIPAM) brushes. The resulting, partially grafted particles are employed as colloidal building blocks for finite-sized clusters.

scholarly journals Synthesis of Poly(ester-graft-methyl methacrylate) on a Macroinitiator with Lateral Sulfonyl Chloride Groups by Atom Transfer Radical Polymerization

2021 ◽  
Vol 63 (4) ◽  
pp. 385-391
Author(s):  
T. K. Meleshko ◽  
A. B. Razina ◽  
N. N. Bogorad ◽  
M. P. Kurlykin ◽  
A. V. Kashina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Sulfonyl Chloride ◽  
Physical And Mechanical Properties ◽  
Degree Of Polymerization ◽  
Side Chains ◽  
Grafting From

Abstract New polymer brushes with an ester backbone and poly(methyl methacrylate) side chains are synthesized by polycondensation and polymerization methods. The initiating groups are sulfonyl chloride groups laterally attached to the polyester chain. PMMA side chains are grafted by the ATRP method according to the “grafting from” multicenter macroinitiator strategy. The conditions for the polymerization processes in a controlled mode are selected, and the ways of targeted regulation of the degree of polymerization of methacrylate side chains are determined. Using the synthesized copolymers self-supporting films are obtained, and their physical and mechanical properties are studied.

scholarly journals Effect of Structure of Polymers Grafted from Graphene Oxide on the Compatibility of Particles with a Silicone-Based Environment and the Stimuli-Responsive Capabilities of Their Composites

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 591 ◽  
Author(s):  
Monika Zygo ◽  
Miroslav Mrlik ◽  
Marketa Ilcikova ◽  
Martina Hrabalikova ◽  
Josef Osicka ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Graphene Oxide ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Silicone Oil ◽  
Polymer Chains ◽  
Butyl Methacrylate ◽  
Raman Shift ◽  
Stimuli Responsive ◽  
Grafted Polymer

This study reports the utilization of controlled radical polymerization as a tool for controlling the stimuli-responsive capabilities of graphene oxide (GO) based hybrid systems. Various polymer brushes with controlled molecular weight and narrow molecular weight distribution were grafted from the GO surface by surface-initiated atom transfer radical polymerization (SI-ATRP). The modification of GO with poly(n-butyl methacrylate) (PBMA), poly(glycidyl methacrylate) (PGMA), poly(trimethylsilyloxyethyl methacrylate) (PHEMATMS) and poly(methyl methacrylate) (PMMA) was confirmed by thermogravimetric analysis (TGA) coupled with online Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Various grafting densities of GO-based materials were investigated, and conductivity was elucidated using a four-point probe method. Raman shift and XPS were used to confirm the reduction of surface properties of the GO particles during SI-ATRP. The contact angle measurements indicated the changes in the compatibility of GOs with silicone oil, depending on the structure of the grafted polymer chains. The compatibility of the GOs with poly(dimethylsiloxane) was also investigated using steady shear rheology. The tunability of the electrorheological, as well as the photo-actuation capability, was investigated. It was shown that in addition to the modification of conductivity, the dipole moment of the pendant groups of the grafted polymer chains also plays an important role in the electrorheological (ER) performance. The compatibility of the particles with the polymer matrix, and thus proper particles dispersibility, is the most important factor for the photo-actuation efficiency. The plasticizing effect of the GO-polymer hybrid filler also has a crucial impact on the matrix stiffness and thus the ability to reversibly respond to the external light stimulation.

scholarly journals Glycopolymer Brushes by Reversible Deactivation Radical Polymerization: Preparation, Applications, and Future Challenges

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1268
Author(s):  
Jessica P. M. Ribeiro ◽  
Patrícia V. Mendonça ◽  
Jorge F. J. Coelho ◽  
Krzysztof Matyjaszewski ◽  
Arménio C. Serra
Keyword(s):  
Radical Polymerization ◽  
Polymer Brushes ◽  
Future Research ◽  
Research Directions ◽  
Precise Control ◽  
Reversible Deactivation ◽  
Future Challenges ◽  
Specific Proteins ◽  
Future Research Directions ◽  
Reversible Deactivation Radical Polymerization

The cellular surface contains specific proteins, also known as lectins, that are carbohydrates receptors involved in different biological events, such as cell–cell adhesion, cell recognition and cell differentiation. The synthesis of well-defined polymers containing carbohydrate units, known as glycopolymers, by reversible deactivation radical polymerization (RDRP) methods allows the development of tailor-made materials with high affinity for lectins because of their multivalent interaction. These polymers are promising candidates for the biomedical field, namely as novel diagnostic disease markers, biosensors, or carriers for tumor-targeted therapy. Although linear glycopolymers are extensively studied for lectin recognition, branched glycopolymeric structures, such as polymer brushes can establish stronger interactions with lectins. This specific glycopolymer topology can be synthesized in a bottlebrush form or grafted to/from surfaces by using RDRP methods, allowing a precise control over molecular weight, grafting density, and brush thickness. Here, the preparation and application of glycopolymer brushes is critically discussed and future research directions on this topic are suggested.

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