End-Linked Poly[2-(dimethylamino)ethyl Methacrylate]–Poly(methacrylic acid) Polyampholyte Conetworks: Synthesis by Sequential RAFT Polymerization and Swelling and SANS Characterization

2011 ◽  
Vol 44 (13) ◽  
pp. 5352-5362 ◽  
Author(s):  
Kyriaki S. Pafiti ◽  
Zelina Philippou ◽  
Elena Loizou ◽  
Lionel Porcar ◽  
Costas S. Patrickios
Keyword(s):  
Methacrylic Acid ◽  
Raft Polymerization ◽  
Ethyl Methacrylate

Highly stretchable, self-healing, and 3D printing prefabricatable hydrophobic association hydrogels with the assistance of electrostatic interaction

2020 ◽  
Vol 11 (29) ◽  
pp. 4741-4748
Author(s):  
Heng Chen ◽  
Beibei Hao ◽  
Penghui Ge ◽  
Shaojun Chen
Keyword(s):  
3D Printing ◽  
Electrostatic Interaction ◽  
Methacrylic Acid ◽  
Butyl Acrylate ◽  
Hydrophobic Association ◽  
Self Healing ◽  
Ethyl Methacrylate ◽  
Highly Stretchable ◽  
Physically Crosslinked

Self-healing and 3D printing prefabricatable physically crosslinked hydrogels were prepared by copolymerization of butyl acrylate, 2-(dimethylamino)ethyl methacrylate, and methacrylic acid, followed by soaking in water.

Synthesis and characterization of poly(ethyl methacrylate-co-methacrylic acid) magnetic particles via miniemulsion polymerization

Polymer ◽  
2006 ◽  
Vol 47 (22) ◽  
pp. 7646-7652 ◽  
Author(s):  
J.S. Nunes ◽  
C.L. de Vasconcelos ◽  
F.A.O. Cabral ◽  
J.H. de Araújo ◽  
M.R. Pereira ◽  
...  
Keyword(s):  
Methacrylic Acid ◽  
Magnetic Particles ◽  
Miniemulsion Polymerization ◽  
Synthesis And Characterization ◽  
Ethyl Methacrylate

Invertible vesicles and micelles formed by dually-responsive diblock random copolymers in aqueous solutions

Soft Matter ◽  
2014 ◽  
Vol 10 (32) ◽  
pp. 5886-5893 ◽  
Author(s):  
Mohammad T. Savoji ◽  
Satu Strandman ◽  
X. X. Zhu
Keyword(s):  
Aqueous Solutions ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Random Copolymers ◽  
Ethyl Methacrylate ◽  
Reversible Addition

Dually responsive diblock random copolymers poly(nPA0.8-co-DEAEMA0.2)-block-poly(nPA0.8-co-EA0.2) were made from random blocks of N-n-propylacrylamide (nPA), 2-(diethylamino)ethyl methacrylate (DEAEMA) and N-ethylacrylamide (EA) via reversible addition–fragmentation chain transfer (RAFT) polymerization.

Aqueous RAFT synthesis of block and statistical copolymers of 2-(α-d-mannopyranosyloxy)ethyl methacrylate with 2-(N,N-dimethylamino)ethyl methacrylate and their application for nonviral gene delivery

2015 ◽  
Vol 6 (10) ◽  
pp. 1793-1804 ◽  
Author(s):  
Makoto Obata ◽  
Tomoya Kobori ◽  
Shiho Hirohara ◽  
Masao Tanihara
Keyword(s):  
Gene Delivery ◽  
Raft Polymerization ◽  
Nonviral Gene Delivery ◽  
Ethyl Methacrylate

Statistical and block glycopolymers presenting d-mannose were prepared by aqueous RAFT polymerization, and the effect of the microstructure on gene delivery was examined.

Linear and Hyperbranched Copolymers of PEG-Based Acrylates and Methacrylic Acid as pH-Responsive Hydrophobic Drug Carriers

2018 ◽  
Vol 940 ◽  
pp. 15-20
Author(s):  
Eduardo C. Atayde Jr. ◽  
Reynaldo Carlos K. Montalbo ◽  
Susan D. Arco
Keyword(s):  
Drug Release ◽  
Oral Administration ◽  
Methacrylic Acid ◽  
Smart Materials ◽  
Raft Polymerization ◽  
Drug Carriers ◽  
Phase Changes ◽  
Hydrophobic Drug ◽  
Drug Compound

The oral administration of pharmaceuticals is typically preferred over other methods due to its non-intrusiveness and convenience of administration. However, the varying chemical environments of the gastro-intestinal tract pose a challenge in ensuring the stability and inertness of a drug compound until it reaches its target. Polymers that are responsive to pH changes have potential as smart materials for the controlled oral administration of pharmaceuticals. In this study, linear and hyperbranched copolymers of methacrylic acid (MAA) and poly (ethylene glycol) methyl ether methacrylate (PEGMEMA) were synthesized by RAFT polymerization. High molecular weight polymers were produced with PDI values close to 1.0. These smart materials underwent phase changes at pH 5.15-5.6. This property enabled the amphiphilicity of the copolymers to be switched on or off. By doing so inin vitrodrug release studies with ibuprofen as the model hydrophobic drug, the copolymers were able to inhibit drug release in simulated stomach conditions to up to 13% while enhancing drug release in simulated intestinal conditions to up to 75% within 6 hours. These indicate that copolymers based on MAA and PEGMEMA have potential as smart materials for drug delivery applications.

Synthesis of water-based cationic polyacrylate copolymer emulsion by RAFT polymerization and its application as an inkjet printing agent

2020 ◽  
Vol 49 (5) ◽  
pp. 401-408
Author(s):  
Haojia Su ◽  
Zhengchun Cai ◽  
Zhengwei lv ◽  
Yongkang Chen ◽  
Yongxin Ji
Keyword(s):  
Contact Angle ◽  
Particle Size ◽  
Epoxy Resin ◽  
Water Contact Angle ◽  
Inkjet Printing ◽  
Raft Polymerization ◽  
Printing Industry ◽  
Water Contact ◽  
Content Type ◽  
Ethyl Methacrylate

Purpose In this work, the authors used reversible addition-fragmentation transfer (RAFT) polymerization to develop a new cationic acrylate modified epoxy resin emulsion for water-borne inkjet which have the advantages of both polyacrylate and epoxy resin. The emulsion was successfully used in the canvas coating for inkjet printing. This paper aims to contribute to the development of novel cationic emulsions for inkjet printing industry. Design/methodology/approach In this work, the epoxy acrylate was synthesized from RAFT agent and epoxy resin firstly. Cationic macromolecular emulsifier was prepared by RAFT polymerization, using 2,2’-Azobisisobutyronitrile as initiator, 2-(dimethylamino)ethyl methacrylate and styrene as monomer, which was directly used to prepare the emulsion. The influences of the amount of 2-(dimethylamino)ethyl methacrylate on particle size, zeta potential and water contact angle were studied. Finally, the cationic emulsion was used to print images by inkjet printing. Findings The emulsion has the smallest particle size, the highest potential and the highest water contact angle when the DM content is 13 Wt.%. The transmission electron microscopy analysis reveals the latex particles is core-shell sphere with the diameters in the range 120–200 nm. The emulsion was successfully used in the canvas coating for inkjet printing. This work will contribute to the development of novel cationic emulsions for inkjet printing industry. Originality/value The emulsion was successfully used in the canvas coating for inkjet printing. This work will contribute to the development of novel cationic emulsions for inkjet printing industry.

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