Reversible cross-linking of hydrophilic dynamic covalent polymers with radically exchangeable alkoxyamines in aqueous media
文献信息
发布日期
2011-06-29
DOI
10.1039/C1PY00176K
影响因子
5.582
作者
Jing Su, Yoshifumi Amamoto, Masamichi Nishihara
查看原文
摘要
Reversible cross-linking of alkoxyamine-containing hydrophilic dynamic covalent polymers in aqueous media has been accomplished. Water-soluble polymers with alkoxyamine units in the side chains were synthesized by radical copolymerization of 2-(dimethylamino)ethyl methacrylate and methacrylic esters with alkoxyamine units, and subsequent protonation of dimethylaminoethyl groups by hydrochloric acid. By heating the polymers in water at 100 °C in a closed system, hydrogels were formed by radical exchange reactions. Because the radical reactions are tolerant of water, the exchange reactions of alkoxyamine units in the side chain caused the cross-linking reaction even in aqueous media. Cross-linking behaviors depended on the amounts of alkoxyamine units in the polymers and the reaction concentrations. A de-cross-linking reaction was also accomplished by radical exchange reaction between the cross-linked polymer and added hydrophilic alkoxyamine compound. This dynamic cross-linking nature in aqueous media provides a foundation for a wide range of polymer reactions, and it can be applied to environmentally benign dynamic materials.
相关文献
The cyclization/rearrangement of α-hydroxy ketones with trifluoromethyl N-acylhydrazones to synthesize multi-substituted trifluoromethyloxazolines
Junjiao Wang, Yongwei Shang, Xiujuan Zhao, Zhenli Cui, Yang Li, Ke-Hu Wang, Danfeng Huang, Yulai Hu, Na Wang, Lei Feng
2023-11-09
Communication
DOI: 10.1039/D3CC03854H
Kinetic enantio-recognition of chiral viologen guests by planar-chiral porphyrin cages
Pieter J. Gilissen, Quentin Duez, Guilherme L. Tripodi, Magda M. J. Dekker, Jiangkun Ouyang, Kais Dhbaibi, Nicolas Vanthuyne, Jeanne Crassous, Jana Roithová, Johannes A. A. W. Elemans, Roeland J. M. Nolte
2023-11-02
Communication
DOI: 10.1039/D3CC04934E
Anion-encapsulating, discrete prism and extended frusta, from trimetallated triangular macrocycles and linkers
Hai-Ping Wang, Zhi-Gang Gu, Nathalie Gruber
2023-11-07
Communication
DOI: 10.1039/D3CC00137G
Rapid building block-economic synthesis of long, multi-O-GalNAcylated MUC5AC tandem repeat peptides
Arseniy Galashov, Ekaterina Kazakova, Christian E. Stieger, Oliver Seitz
2023-12-18
Edge Article
DOI: 10.1039/D3SC05006H
Construction of C2-indolyl-quaternary centers by branch-selective allylation: enabling concise total synthesis of the (±)-mersicarpine alkaloid
Minakshi Ghosh, Samrat Sahu, Shuvendu Saha, Modhu Sudan Maji
2023-12-18
Edge Article
DOI: 10.1039/D3SC04732F
Interface-mediated protein aggregation
Fei Tao, Qian Han, Peng Yang
2023-11-01
Feature Article
DOI: 10.1039/D3CC04311H
What is the nature of the uranium(iii)–arene bond?
Sabyasachi Roy Chowdhury, Bess Vlaisavljevich
2023-12-14
Edge Article
DOI: 10.1039/D3SC04715F
Electrochemical energy storage in an organic supercapacitor via a non-electrochemical proton charge assembly
Sanchayita Mukhopadhyay, Mruthyunjayachari Chattanahalli Devendrachari, Rahul Mahadeo Mendhe, Harish Makri Nimbegondi Kotresh, Chathakudath Prabhakaran Vinod, Musthafa Ottakam Thotiyl
2023-12-19
Edge Article
DOI: 10.1039/D3SC05639B
Ligand field design enables quantum manipulation of spins in Ni2+ complexes
Michael K. Wojnar, Krishnendu Kundu, Arailym Kairalapova, Xiaoling Wang, Andrew Ozarowski, Timothy C. Berkelbach, Danna E. Freedman
2023-12-08
Edge Article
DOI: 10.1039/D3SC04919A
Creating glassy states of dicarboxylate-bridged coordination polymers
Zeyu Fan, Yong-Sheng Wei, Chinmoy Das, Kazuyoshi Kanamori, Hiroki Yamada, Koji Ohara
2023-11-07
Communication
DOI: 10.1039/D3CC04518H
您可能还喜欢
化合物问答
2-(甲基磺酰基)嘧啶-5-胺(CAS号：56621-92-2)适用哪些法规指南？
该化合物适用的法规指南包括GHS（全球化学品统一分类和标签制度）分类为特定目标器官毒性-单次接触类别3；根据欧盟REACH法规，该化合物需要进行注册和评估；在美...
56621-92-22-(Methylsulfonyl)py...
化合物问答
在合成中是否有4-(4-氯苯基)-1H-咪唑(CAS号：35512-29-9)的替代品？
在合成中，可以考虑使用一些类似的化合物作为4-(4-氯苯基)-1H-咪唑的替代品，如4-(4-溴苯基)-1H-咪唑或4-(4-甲氧基苯基)-1H-咪唑。这些化合...
35512-29-94-(4-Chlorophenyl)-1...
化合物问答
什么是N~2~-甲基丙氨酸酰胺(CAS号：32012-16-1)？
N~2~-甲基丙氨酸酰胺是一种有机化合物，其化学名为2-(Methylamino)propanamide。它是一种酰胺类化合物，分子式为C4H10N2O，相对分...
32012-16-12-(Methylamino)propa...
化合物问答
如何处理含有N-苄基-3-氨基氧杂环丁烷草酸盐(CAS号：1956341-96-0)的废料？
处理含有N-苄基-3-氨基氧杂环丁烷草酸盐（CAS号：1956341-96-0）的废料时，应首先确保遵循相关法规要求，如GHS和REACH等。通常，废液应先进行...
1956341-96-0N-Benzyloxetan-3-ami...
化合物问答
4-bromo-2-chloro-6-methylbenzoic acid(CAS号：877149-07-0)的物理化学性质是什么？
4-溴-2-氯-6-甲基苯甲酸是一种固体化合物，具有较高的熔点和较低的沸点。它的分子量为261.03 g/mol。该化合物在水中几乎不溶，在有机溶剂中溶解度适中...
877149-07-04-Bromo-2-chloro-6-m...
化合物问答
2-[(2,5-二氯-4-嘧啶)氨基]-N-甲基苯甲酰胺(CAS号：761440-08-8)通常如何合成？
该化合物通常通过缩合反应合成，典型的方法是将2,5-二氯嘧啶与N-甲基苯甲酰胺在碱性条件下进行偶联反应。常用的碱包括NaH、LDA等强碱。该合成路线具有较高的选...
761440-08-82-[(2,5-dichloropyri...
4752-10-71,4-Dichlorophthalaz...
化合物问答
在合成中是否有3,5-二溴-4-甲基苯胺(CAS号：13194-73-5)的替代品？
3,5-二溴-4-甲基苯胺在某些合成路线中可能没有直接替代品。然而，在某些应用场景下，可以考虑使用其他类似结构的化合物如3,5-二溴-4-硝基苯胺或3,5-二碘...
13194-73-53,5-Dibromo-4-methyl...
化合物问答
2-氯喹啉-4-羧酸甲酯(CAS号：62482-26-2)的主要用途是什么？
2-氯喹啉-4-羧酸甲酯主要用于有机合成和药物合成领域，作为中间体或原料。它在合成某些药物和染料时具有重要作用。此外，该化合物还可能用于某些特定的化学研究中。
62482-26-2Methyl 2-chloro-4-qu...
化合物问答
i>]吡啶(CAS号：474708-88-8)安全吗？
6-溴-8-氯咪唑[1,2-a]吡啶在操作过程中需要谨慎以确保安全。该化合物具有一定的毒性，吸入其蒸气或粉尘可能导致呼吸道刺激。处理时应佩戴适当的防护装备，如手...
474708-88-86-Bromo-8-chloroimid...
来源期刊
Polymer Chemistry
CiteScore:
8.6
自引率:
7.3%
年发文量:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
推荐化合物
推荐供应商
免责声明
本页面提供的学术期刊信息仅供参考和研究使用。我们与任何期刊出版商均无关联，也不处理投稿事宜。如有投稿相关咨询，请直接联系相关期刊出版商。
如发现页面信息有误，请发送邮件至 support@chemtradehub.com 联系我们。我们将及时核实并处理您的问题。