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298 Newest Publications about the topic solution

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ROMP synthesis of novel thermo‐, pH‐, and salt‐responsive (co)polymers containing the morpholino functional group

21-10-2014 | Johannes A. Hensbergen, Sylvia Ganda, Peter J. Roth, Robert P. Burford, Andrew B. Lowe, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT We report the ring‐opening metathesis polymerization (ROMP) synthesis of novel (co)polymers containing the multiresponsive morpholino functional group [(3aR,7aS)−2‐(2‐morpholinoethyl)−3a,4,7,7a‐tetrahydro‐1H−4,7‐epoxyisoindole‐1,3(2H)‐dione (M1)]. All (co)polymers were prepared with ...

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Using controlled radical polymerization to confirm the lower critical solution temperature of an N‐(alkoxyalkyl) acrylamide polymer in aqueous solution

21-10-2014 | Xeniya Savelyeva, Lucia Li, Milan Marić, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT N‐(3‐Methoxypropyl) acrylamide (MPAM) was polymerized by controlled radical polymerization (CRP) methods such as nitroxide‐mediated polymerization (NMP) and reversible addition–fragmentation chain‐transfer polymerization (RAFT). CRP was expected to yield well‐defined polymers with ...

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Dynamic covalent polypeptides showing tunable secondary structures and thermoresponsiveness

20-10-2014 | Jiatao Yan, Kun Liu, Xiuqiang Zhang, Wen Li, Afang Zhang, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT Lysine‐based polypeptides can be afforded with steerable secondary structures and tunable thermoresponsiveness through dynamic covalent OEGylation. These polypeptides were formed through dynamic imine linkage via reactions of amino moieties from poly(l‐lysine)s with aldehydes from ...

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Poly(ionic liquid)s derived from 3‐octyl‐1‐vinylimidazolium bromide and N‐isopropylacrylamide with tunable properties

03-10-2014 | Javier Illescas, Mariano Casu, Valeria Alzari, Daniele Nuvoli, Mariano Andrea Scorciapino, Roberta Sanna, Vanna Sann ..., Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT A new series of linear and crosslinked copolymers, obtained from 3‐octyl‐1‐vinylimidazolium bromide (VImBr) and N‐isopropylacrylamide (NIPAAm), were prepared by radical polymerization. Namely, VImBr was synthesized from 1‐bromooctane and an ionic liquid such as 1‐vinylimidazole. ...

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Protecting‐group‐free synthesis of glycopolymers bearing thioglycosides via one‐pot monomer synthesis from free saccharides

03-10-2014 | Tomonari Tanaka, Genri Inoue, Shin‐Ichiro Shoda, Yoshiharu Kimura, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT Polyacrylamides having pendant thioglycosides were successfully synthesized from thioglycosidic monomers that were readily prepared by one‐pot method without any protection of the hydroxy groups on the starting free saccharides. The glycomonomers were synthesized by the direct ...

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Patterned growth of oriented 2D covalent organic framework thin films on single‐layer graphene

30-09-2014 | John W. Colson, Jason A. Mann, Catherine R. DeBlase, William R. Dichtel, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT Two‐dimensional covalent organic frameworks (COFs) are polymer networks that organize molecular building blocks into porous, layered structures of interest for organic optoelectronic and energy storage devices. Current synthetic methods produce these materials as either insoluble, ...

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Remarkably stable amphiphilic random copolymer assemblies: A structure‐property relationship study

11-09-2013 | Krishna Dan, Priya Rajdev, Jolly Deb, Siddhartha S. Jana, Suhrit Ghosh, Journal of Polymer Science Part A: Polymer Chemistry, 2013

ABSTRACT Synthesis of a library of amphiphilic random copolymers from a single reactive pre‐polymer and their self‐assembly is reported. Post‐polymerization modifications of the parent polymer containing pendant N‐hydroxy succinimide (NHS) ester groups with various oligooxyethylene (OE) amines ...

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Synthesis of electroactive and biodegradable multiblock copolymers based on poly(ester amide) and aniline pentamer

26-08-2013 | Li Song, Baoguo Du, Li Chen, Mingxiao Deng, Hai Sun, Xuan Pang, Peibiao Zhang, Xuesi Chen, Journal of Polymer Science Part A: Polymer Chemistry, 2013

ABSTRACT A new family of multiblock copolymers (PEA‐b‐AP) based on poly(ester amide) (PEA) and aniline pentamer (AP) with the unique properties of being both electroactive and biodegradable was synthesized via a two‐stage active solution polycondensation. The new synthesis approach proceeded ...

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Poly(tetrafluorostyrenephosphonic acid)–polysulfone block copolymers and membranes

19-08-2013 | Zhecheng Shao, Arindam Sannigrahi, Patric Jannasch, Journal of Polymer Science Part A: Polymer Chemistry, 2013

ABSTRACT A series of ionic ABA triblock copolymers having a central polysulfone (PSU) block and poly(2,3,5,6,‐tetrafluorostyrene‐4‐phosphonic acid) (PTFSPA) outer blocks with different lengths were prepared and studied as electrolyte membranes. PSU with terminal benzyl bromide was used as a ...

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Chain center‐functionalized amphiphilic block polymers: Complementary hydrogen bond self‐assembly in aqueous solution

08-08-2013 | Sang‐Ho Lee, Makoto Ouchi, Mitsuo Sawamoto, Journal of Polymer Science Part A: Polymer Chemistry, 2013

ABSTRACT Hydrogen bonding self‐assemblies were formed in an aqueous medium from a pair of an amphiphilic ABA triblock copolymer and a hydrophobic homopolymer, both with a triple hydrogen bonding site that was complementary to each other and precisely placed at the main‐chain center: ...

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