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534 Newest Publications about the topic solution

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Surface-Initiated Chain Growth Polyaramid Brushes

26-Jun-2015 | Frederick C. Prehn, Jr.; Stephen G. Boyes, Macromolecules, 2015

Synthesis of well-defined, surface-initiated poly(N-octyl-p-benzamide) brushes was demonstrated using a new “grafting from” chain growth technique. A solution-based chain growth polycondensation technique was adopted from literature and modified to form a polyaramid brush by taking advantage of ...

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Dynamic Molecular Behavior on Thermoresponsive Polymer Brushes

25-Jun-2015 | Huai-Ying Chin; Dapeng Wang; Daniel K. Schwartz, Macromolecules, 2015

The surface dynamics of individual surfactant and polymer molecules on thermally responsive polymer brushes (poly(N-isopropylacrylamide), PNIPAAM) were studied using high throughput single molecule tracking microscopy. The probe molecules universally exhibited intermittent hopping motion, in ...

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Photochemical Design of Stimuli-Responsive Nanoparticles Prepared by Supramolecular Host–Guest Chemistry

24-Jun-2015 | Astrid F. Hirschbiel; Bernhard V. K. J. Schmidt; Peter Krolla-Sidenstein; James P. Blinco; Christopher Barner-Kowollik, Macromolecules, 2015

We introduce the design of a thermoresponsive nanoparticle via sacrificial micelle formation based on supramolecular host–guest chemistry. Reversible addition–fragmentation chain transfer (RAFT) polymerization was employed to synthesize well-defined polymer blocks of poly(N,N-dimethylacrylamide) ...

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Temperature Driven Self-Assembly of a Zwitterionic Block Copolymer That Exhibits Triple Thermoresponsivity and pH Sensitivity

16-Jun-2015 | Zulma A. Jiménez; Ryo Yoshida, Macromolecules, 2015

We report a zwitterionic block copolymer composed of N-isopropylacrylamide and N,N-dimethyl-N-(3-(methacrylamido)propyl)ammoniopropanesulfonate monomers which self-assembles into different structures depending on the solution temperature. As the temperature is increased from 20 to 70 °C, the ...

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A Library of Thermoresponsive, Coacervate-Forming Biodegradable Polyesters

12-Jun-2015 | John P. Swanson; Leanna R. Monteleone; Fadi Haso; Philip J. Costanzo; Tianbo Liu; Abraham Joy, Macromolecules, 2015

We report on a new class of thermoresponsive biodegradable polyesters (TR-PE) inspired by polyacrylamides and elastin-like proteins (ELPs). The polyesters display reversible phase transition with tunable cloud point temperatures (Tcp) in aqueous solution as evidenced by UV–vis spectroscopy, 1H ...

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Size Control of Spherical and Anisotropic Fluorescent Polymer Nanoparticles via Precise Rigid Molecules

09-Jun-2015 | Friederike Schütze; Marina Krumova; Stefan Mecking, Macromolecules, 2015

Highly monodisperse block copolymers allow for the preparation of luminescent particles with sizes reflecting the oligomer chain length. Self-organization in tetrahydrofuran/methanol leads to anisotropic nanorods with a thickness corresponding directly to the oligomer length (up to 14 nm for ...

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Aldoxime-Derived Water-Soluble Polymer for the Multiple Analyte Sensing: Consecutive and Selective Detection of Hg2+, Ag+, ClO–, and Cysteine in Aqueous Media

03-Jun-2015 | A. Balamurugan; Hyung-il Lee, Macromolecules, 2015

A simple tailor-made aldoxime-functionalized water-soluble polymeric probe (P-Oxime) for the consecutive colorimetric sensing of multiple analytes, including Hg2+, Ag+, ClO–, and cysteine, was designed and synthesized. A reaction between the aldehyde groups of the side chain in the polymer ...

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Molecularly Imprinted Polymers for Selective Adsorption of Lysozyme and Cytochrome c Using a PEG-Based Hydrogel: Selective Recognition for Different Conformations Due to pH Conditions

01-Jun-2015 | Takuya Kubo; Shunsuke Arimura; Yuichi Tominaga; Toyohiro Naito; Ken Hosoya; Koji Otsuka, Macromolecules, 2015

We report molecularly imprinted polymers (MIPs) for selective adsorption of proteins using a poly(ethylene glycol) (PEG)-based cross-linker with ionic monomers. To clarify the utility of the concept for preparation of the imprinted polymers using a PEG-based cross-linker, we employed lysozyme or ...

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Star Diblock Copolymer Concentration Dictates the Degree of Dispersion of Carbon Black Particles in Nonpolar Media: Bridging Flocculation versus Steric Stabilization

28-May-2015 | David J. Growney; Oleksandr O. Mykhaylyk; Thibault Derouineau; Lee A. Fielding; Andrew J. Smith; Najib Aragrag; Gord ..., Macromolecules, 2015

The solution behavior of a polystyrene–hydrogenated polyisoprene star diblock copolymer (Mn ∼ 384 K; 6 mol % polystyrene) is examined in nonpolar media. Variable temperature 1H NMR studies using deuterated n-dodecane confirm that the outer polystyrene blocks are only partially solvated in ...

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Radical Polymerization of Pendant (Meth)acrylates on a Rigid Helical Polyisocyanate Backbone Producing Poly(meth)acrylates with “Ideally” Atactic Main Chain Configuration

22-May-2015 | Atsushi Narumi; Hitomi Baba; Tetsuya Akabane; Yuta Saito; Satoshi Ohno; Daichi Togashi; Kazushi Enomoto; Moriya Kiku ..., Macromolecules, 2015

This study includes a topic that poly(methyl methacrylate) (PMMA) with an “ideally” atactic main chain configuration, approximately triad tacticities of mm/mr/rr = 1/2/1, has been produced in solution by the “one-dimensionally regulated” radical polymerization using rigid helical polyisocyanate ...

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