scholarly journals Synthesis of well-defined epoxy-functional spherical nanoparticles by RAFT aqueous emulsion polymerization

2017 ◽  
Vol 8 (33) ◽  
pp. 4856-4868 ◽  
Author(s):  
Fiona L. Hatton ◽  
Joseph R. Lovett ◽  
Steven P. Armes
Keyword(s):  
Emulsion Polymerization ◽  
Sodium Azide ◽  
Glycidyl Methacrylate ◽  
Environmentally Friendly ◽  
Spherical Nanoparticles ◽  
Aqueous Emulsion ◽  
Mild Conditions

The environmentally-friendly synthesis of epoxy-functional spherical nanoparticles is achieved via RAFT aqueous emulsion polymerization of glycidyl methacrylate under mild conditions; derivatization of such nanoparticles with sodium azide or diamines is demonstrated.

scholarly journals Rational synthesis of epoxy-functional spheres, worms and vesicles by RAFT aqueous emulsion polymerisation of glycidyl methacrylate

2020 ◽  
Vol 11 (39) ◽  
pp. 6343-6355
Author(s):  
Fiona L. Hatton ◽  
Matthew J. Derry ◽  
Steven P. Armes
Keyword(s):  
Diblock Copolymer ◽  
Glycidyl Methacrylate ◽  
Aqueous Emulsion ◽  
Mild Conditions ◽  
Emulsion Polymerisation ◽  
Epoxy Groups

The rational synthesis of epoxy-functional diblock copolymer nano-objects has been achieved by RAFT aqueous emulsion polymerisation of glycidyl methacrylate under mild conditions (50 °C, pH 7) to preserve the epoxy groups.

scholarly journals Synthesis of diblock copolymer spheres, worms and vesicles via RAFT aqueous emulsion polymerization of hydroxybutyl methacrylate

2021 ◽  
Author(s):  
Saul J. Hunter ◽  
Joseph R. Lovett ◽  
Oleksandr O. Mykhaylyk ◽  
Elizabeth R. Jones ◽  
Steven P. Armes
Keyword(s):  
Phase Diagram ◽  
Emulsion Polymerization ◽  
Diblock Copolymer ◽  
Aqueous Emulsion

RAFT aqueous emulsion polymerization of hydroxybutyl methacrylate using a poly(glycerol monomethacrylate) precursor leads to diblock copolymer spheres, worms or vesicles. A pseudo-phase diagram is constructed and the vesicles are briefly evaluated as a Pickering emulsifier.

scholarly journals Homocoupling of terminal alkynes catalyzed by CuCl under solvent-free conditions

2021 ◽  
pp. 174751982110325
Author(s):  
Yan Xiao ◽  
Jiyu Gao ◽  
Peng Chen ◽  
Guangliang Chen ◽  
Zicheng Li ◽  
...  
Keyword(s):  
Functional Group ◽  
Reaction Times ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
Copper Salt ◽  
Terminal Alkynes ◽  
Mild Conditions ◽  
Solvent Free Conditions ◽  
Environmentally Friendly Process

A series of symmetrical 1,4-disubstituted buta-1,3-diynes is prepared with excellent yields (up to 95%) through homocoupling of terminal alkynes catalyzed by a copper salt under solvent-free conditions. This method provides an environmentally friendly process to prepare 1,3-diynes in short reaction times under mild conditions. Furthermore, the method is suitable for a wide substrate scope and has excellent functional group compatibility. The reaction can also be scaled up to gram level.

scholarly journals Recent Advances in Rapid Synthesis of Non-proteinogenic Amino Acids from Proteinogenic Amino Acids Derivatives via Direct Photo-Mediated C–H Functionalization

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5270
Author(s):  
Zhenbo Yuan ◽  
Xuanzhong Liu ◽  
Changmei Liu ◽  
Yan Zhang ◽  
Yijian Rao
Keyword(s):  
Amino Acids ◽  
Direct Synthesis ◽  
Environmentally Friendly ◽  
Powerful Method ◽  
Rapid Synthesis ◽  
Conservation Of Energy ◽  
Mild Conditions ◽  
Recent Advances ◽  
Recent Developments

Non-proteinogenic amino acids have attracted tremendous interest for their essential applications in the realm of biology and chemistry. Recently, rising C–H functionalization has been considered an alternative powerful method for the direct synthesis of non-proteinogenic amino acids. Meanwhile, photochemistry has become popular for its predominant advantages of mild conditions and conservation of energy. Therefore, C–H functionalization and photochemistry have been merged to synthesize diverse non-proteinogenic amino acids in a mild and environmentally friendly way. In this review, the recent developments in the photo-mediated C–H functionalization of proteinogenic amino acids derivatives for the rapid synthesis of versatile non-proteinogenic amino acids are presented. Moreover, postulated mechanisms are also described wherever needed.

p-Toluenesulfonic Acid Coated Natural Phosphate as an Efficient Catalyst for the Synthesis of 2-Substituted Benzimidazole

2018 ◽  
Vol 42 (12) ◽  
pp. 614-617
Author(s):  
Soumia Belkharchach ◽  
Hanane Elayadi ◽  
Hana Ighachane ◽  
Said Sebti ◽  
Mustapha Ait Ali ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Catalytic Amount ◽  
Reusable Catalyst ◽  
Efficient Catalyst ◽  
Natural Phosphate ◽  
Mild Conditions ◽  
Toluenesulfonic Acid ◽  
High Yields

2-Substituted benzimidazoles are selectively synthesised in high yields via the condensation of o-phenylenediamine derivatives with aldehyde derivatives using catalytic amount of p-toluenesulfonic acid coated natural phosphate (NP/PTSA) under mild conditions. The use of NP/PTSA as a reusable catalyst makes this process simple, convenient, and environmentally friendly.

Diethyl Phosphite Promoted Electrochemical Oxidation of Tetrahydroisoquinolines to 3,4-Dihydroisoquinolin-1(2H)-ones

Synlett ◽  
2019 ◽  
Vol 30 (18) ◽  
pp. 2077-2080
Author(s):  
Wenxia Xie ◽  
Bowen Gong ◽  
Shulin Ning ◽  
Nian Liu ◽  
Zhuoqi Zhang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Environmentally Friendly ◽  
Diethyl Phosphite ◽  
Mild Conditions ◽  
Undivided Cell ◽  
Mediated Electrochemical Oxidation

A diethyl phosphite mediated electrochemical oxidation strategy for the synthesis of 3,4-dihydroisoquinolin-1(2H)-ones from tetrahydroisoquinolines under mild conditions has been developed. This protocol provides an environmentally friendly and simple way for the construction of C=O bonds in an undivided cell unit.

scholarly journals Tuning the membrane permeability of polymersome nanoreactors developed by aqueous emulsion polymerization-induced self-assembly

Nanoscale ◽  
2019 ◽  
Vol 11 (26) ◽  
pp. 12643-12654 ◽  
Author(s):  
Spyridon Varlas ◽  
Jeffrey C. Foster ◽  
Panagiotis G. Georgiou ◽  
Robert Keogh ◽  
Jonathan T. Husband ◽  
...  
Keyword(s):  
Membrane Permeability ◽  
Emulsion Polymerization ◽  
Self Assembly ◽  
Primary Amines ◽  
Cross Linking ◽  
Membrane Modification ◽  
Aqueous Emulsion

Membrane modification of epoxy-functionalized enzyme-loaded polymersomes using a series of primary amines and cross-linking diamines of increasing hydrophobicity resulted in functional nanoreactors with tunable permeability.

Block copolymers as polymeric stabilizers in non-aqueous emulsion polymerization

2011 ◽  
Vol 60 (11) ◽  
pp. 1563-1573 ◽  
Author(s):  
Leonard-I. Atanase ◽  
Gérard Riess
Keyword(s):  
Block Copolymers ◽  
Emulsion Polymerization ◽  
Aqueous Emulsion

Novel reactive polymerizable nonyl phenol ethoxylate surfactants as emulsifier in non-aqueous emulsion polymerization

2014 ◽  
Vol 56 (6) ◽  
pp. 770-787 ◽  
Author(s):  
Ayman M. Atta ◽  
Amro K. F. Dyab ◽  
Hamad A. Al-Lohedan ◽  
Khaled A. AlJenady
Keyword(s):  
Emulsion Polymerization ◽  
Nonyl Phenol ◽  
Aqueous Emulsion ◽  
Nonyl Phenol Ethoxylate
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