Amphiphilic ethyl cellulose brush polymers with mono and dual side chains: Facile synthesis, self-assembly, and tunable temperature-pH responsivities

Yuan, Weizhong; Zhang, Jinchun; Zou, Hui; Shen, Tianxiang; Ren, Jie

doi:10.1016/j.polymer.2012.01.003

Cited by 56 publications

(38 citation statements)

References 74 publications

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“…"click" or ROP), cellulose graft copolymers with complex architectures, such as dual-, block-, or centipede-like graft [130,133,138,143,150e152] can be synthesized. Yuan et al [152] have reported a novel amphiphilic EC brush polymers with mono and dual side chains of P(MEO 2 MA-co-OEGMA) and PDMAEMA by the combination of ATRP and click chemistry. The molar ratio of P(MEO 2 MA-co-OEGMA) and PDMAEMA was varied through changing the feed ratio of these polymers and the coupling efficiency of click chemistry is relatively high.…”

Section: Atrp Of Cellulosementioning

confidence: 99%

Graft modification of cellulose: Methods, properties and applications

Kang

Liu

Huang

2015

Polymer

179

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Section: Atrp Of Cellulosementioning

confidence: 99%

Graft modification of cellulose: Methods, properties and applications

Kang

Liu

Huang

2015

Polymer

179

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“…While most of the nucleophilic substitution reactions require the assistance of strong bases [37][38][39][40][41]_ENREF_25_ENREF_26 like sodium hydride, or the pre-substitution/activation of the hydroxyl group of the polysaccharide by a good leaving group [42], the success of esterification reactions largely depends on catalysts or activation agents including 1,1'-carbonyldiimidazole (CDI), DCC, and ethyl(dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS). Azide functionality can also be introduced stepwise by first introducing a halogen functionalized side chain to the polysaccharide backbone followed by nucleophilic substitution of the halogen with azide [43][44][45]. These classical reactions are synthetically straightforward, and can usually give moderate to high degree of substitution (DS) values, largely depending on the stoichiometry.…”

Section: Tethered Azides or Alkynesmentioning

confidence: 99%

“Click” reactions in polysaccharide modification

Meng

Edgar

2016

Progress in Polymer Science

167

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Polysaccharide chemistry is enjoying accelerating development thanks to advances in synthetic techniques, biochemistry and solvents, which enable polysaccharide materials to be useful in a variety of demanding applications. Among the synthetic advances, click chemistry has reconfigured the realm of polysaccharide modification that previously was dominated by conventional synthetic approaches such as esterification and etherification. "Click" reactions provide mild, modular, and efficient modification pathways, and equally importantly allow us to synthesize derivatives with novel functionality, architecture, and properties, that are otherwise difficult to obtain via conventional methods. Herein, we review application in polysaccharide modification of six groups of click reactions; CuAAC (copper catalyzed alkyne/azide cycloaddition), metal-free [3+2] cycloaddition, Diels-Alder reaction, oxime click, thiol-Michael reaction, and thiol-ene reaction, as well as one click-like reaction that is the subject of our own research, olefin cross-metathesis.

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“…This reduction is due to the hydrophilic tertiary amine groups of the PDEAEMA structure. Under acidic conditions, the N,N-dimethylaminoethyl groups are protonated [51] . At higher pH, deprotonation of the tertiary amine groups leads to contraction of the PDEAEMA brushes, reducing the diameter of the micelles.…”

Section: Ph-responsive Property Of Cellulose-g-pdeaemamentioning

confidence: 99%