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458 Newest Publications about the topic solution

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Accessibility of Responsive End-Caps in Films Composed of Stimuli-Responsive, Depolymerizable Poly(phthalaldehydes)

12-09-2013 | Anthony M. DiLauro; Hua Zhang; Matthew S. Baker; Flory Wong; Ayusman Sen; Scott T. Phillips, Macromolecules, 2013

Polymers that are capable of depolymerizing completely from head-to-tail upon cleavage of an end-cap from the terminus of the polymer have emerged recently as a new strategy for creating stimuli-responsive solid-state materials with amplified responses. In theory, solid-state materials made from ...

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“Higher Energy Gap” Control in Fluorescent Conjugated Polymers: Turn-On Amplified Detection of Organophosphorous Agents

12-09-2013 | Deepa Pangeni; Evgueni E. Nesterov, Macromolecules, 2013

Chemo- and biosensors based on fluorescent conjugated polymers benefit from greater detection sensitivity due to amplification of the electronic perturbations produced by analyte binding. This amplification stems from the exciton-transporting properties of conjugated polymers. In a conventional ...

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RAFT Synthesis and Aqueous Solution Behavior of Novel pH- and Thermo-Responsive (Co)Polymers Derived from Reactive Poly(2-vinyl-4,4-dimethylazlactone) Scaffolds

12-09-2013 | Jing Yang Quek; Yicheng Zhu; Peter J. Roth; Thomas P. Davis; Andrew B. Lowe, Macromolecules, 2013

Well-defined homopolymers of 2-vinyl-4,4-dimethylazlactone (VDA) and AB diblock copolymers of VDA with N,N-dimethylacrylamide (DMA) and N-isopropylacrylamide (NIPAM) prepared by reversible addition–fragmentation chain transfer (RAFT) radical polymerization are reported. VDA homopolymers reacted ...

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Synthesis and Characteristics of a Biobased High-Tg Terpolyester of Isosorbide, Ethylene Glycol, and 1,4-Cyclohexane Dimethanol: Effect of Ethylene Glycol as a Chain Linker on Polymerization

12-09-2013 | Won Jae Yoon; Sung Yeon Hwang; Jun Mo Koo; Yoo Jin Lee; Sang Uck Lee; Seung Soon Im, Macromolecules, 2013

A solution for overcoming the low reactivity of terephthalic acid and isosorbide (ISB) is proposed that uses 1,4-cyclohexane dimethanol and ethylene glycol. Using the different reactivities, volatilities, and degree of steric hindrances among the three diols, a highly heat-resistive biobased ...

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Phase Transitions of Polystyrene-b-poly(dimethylsiloxane) in Solvents of Varying Selectivity

06-09-2013 | Ting-Ya Lo; Chia-Cheng Chao; Rong-Ming Ho; Prokopios Georgopanos; Apostolos Avgeropoulos; Edwin L. Thomas, Macromolecules, 2013

A simple method to create a variety of nanostructures via the self-assembly of a single composition silicon-containing block copolymer (BCP) is developed. By using selective solvents for the self-assembly of polystyrene-block-poly(dimethylsiloxane) (PS–PDMS), the phase behavior of intrinsic BCP ...

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Solvent Response and Protonation Effects of Novel Aramides Containing Pyridine and Unsymmetrical Carbazole Moieties

06-09-2013 | Ying-Chi Huang; Kun-Li Wang; Cheng-Hung Chang; Yi-An Liao; Der-Jang Liaw; Kueir-Rarn Lee; Juin-Yih Lai, Macromolecules, 2013

A new diamine containing pyridine and carbazole groups was synthesized via a Chichibabin reaction and subsequent reduction; this compound was then used in the preparation of organo-soluble aramides (PA-a–i). The resultant polymers had high glass transition temperatures, which fell within the ...

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Reversible Transformation of Nanostructured Polymer Particles

29-08-2013 | Renhua Deng; Fuxin Liang; Weikun Li; Zhenzhong Yang; Jintao Zhu, Macromolecules, 2013

A reversible transformation of overall shape and internal structure as well as surface composition of nanostructured block copolymer particles is demonstrated by solvent-adsorption annealing. Polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) pupa-like particles with PS and P4VP lamellar domains ...

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Thermoresponsive Dynamic Covalent Polymers with Tunable Properties

26-08-2013 | Jingyi Li; Shixia Yang; Lin Wang; Xiaobei Wang; Li Liu, Macromolecules, 2013

A bisaldehyde-containing trithiocarbonate chain transfer agent was prepared and mediated the synthesis of polymers with bisaldehyde-functionalized α-termini by reversible addition–fragmentation chain transfer (RAFT) radical polymerization. The α-termini of RAFT-derived thermoresponsive ...

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Dynamic Segment Size of the Cellulose Chain in an Ionic Liquid

23-08-2013 | Ayaka Maeda; Tadashi Inoue; Takahiro Sato, Macromolecules, 2013

Viscoelasticity and strain-induced birefringence under oscillatory shear flow of cellulose/1-buthyl-3-methylimidazolium chloride (BmimCl) solutions were measured at various temperatures covering a wide frequency zone from the terminal flow to the glassy zone for dilute (2 wt %) and ...

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Small-Angle Neutron Scattering Analysis of Bottlebrush Polymers Prepared via Grafting-Through Polymerization

22-08-2013 | Stacy L. Pesek; Xianyu Li; Boualem Hammouda; Kunlun Hong; Rafael Verduzco, Macromolecules, 2013

Bottlebrush polymers are highly branched macromolecules with potential applications in antifouling coatings, rheological modifiers, and drug delivery systems. However, the solution conformation of bottlebrush polymers has been studied in only a limited set of materials made primarily by ...

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