Temperature-Responsive Water-Soluble Copolymers Based on 2-Hydroxyethyl Acrylate and Butyl Acrylate

2007 ◽  
Vol 208 (9) ◽  
pp. 979-987 ◽  
Author(s):  
Grigoriy A. Mun ◽  
Zauresh S. Nurkeeva ◽  
Aliya B. Beissegul ◽  
Artem V. Dubolazov ◽  
Perizat I. Urkimbaeva ◽  
...  
Keyword(s):  
Butyl Acrylate ◽  
Water Soluble ◽  
Temperature Responsive

Grafting of PVA in Miniemulsion Copolymerizations ofn-Butyl Acrylate and Methyl Methacrylate Using Water-Soluble, Partially Water-Soluble, and Oil-Soluble Initiators

2004 ◽  
Vol 37 (9) ◽  
pp. 3180-3187 ◽  
Author(s):  
Noma Kim ◽  
E. David Sudol ◽  
Victoria L. Dimonie ◽  
Mohamed S. El-Aasser
Keyword(s):  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Water Soluble

Nitroxide-Mediated Controlled Free-Radical Emulsion Polymerization of Styrene andn-Butyl Acrylate with a Water-Soluble Alkoxyamine as Initiator

2004 ◽  
Vol 116 (45) ◽  
pp. 6312-6315 ◽  
Author(s):  
Julien Nicolas ◽  
Bernadette Charleux ◽  
Olivier Guerret ◽  
St�phanie Magnet
Keyword(s):  
Free Radical ◽  
Emulsion Polymerization ◽  
Butyl Acrylate ◽  
Water Soluble

Miniemulsion Polymerization Stabilized by a Well-Defined, Amphiphilic Gradient Poly(styrene-co-acrylic acid) Copolymer

2006 ◽  
Vol 59 (8) ◽  
pp. 544 ◽  
Author(s):  
Catherine Lefay ◽  
Maud Save ◽  
Bernadette Charleux ◽  
Stéphanie Magnet
Keyword(s):  
Particle Size ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Miniemulsion Polymerization ◽  
Radical Copolymerization ◽  
Water Soluble ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Free Radical Copolymerization

The nitroxide-mediated controlled free-radical copolymerization of styrene (St) and acrylic acid (AA) was used to synthesize a well-defined poly(St30%-co-AA70%) amphiphilic gradient copolymer. The latter proved to be an efficient stabilizer in the 45 wt.-% solids content, batch miniemulsion polymerizations of St and of mixtures of methyl methacrylate/n-butyl acrylate (35/65 w/w). With 2,2´-azobisisobutyronitrile as an oil-soluble initiator, polystyrene latexes with a very narrow particle distribution were obtained, whereas the water-soluble initiator, potassium persulfate, led to broad, multimodal particle size distributions. Such results were explained by the contribution of two nucleation mechanisms: droplet nucleation and homogeneous nucleation. In contrast, the poly(methyl methacrylate-co-n-butyl acrylate) latexes exhibited larger particle size and narrower particle size distributions with persulfate initiator, than the polystyrene latexes.

Synthesis of functionalized-thermo responsive-water soluble co-polymer for conjugation to protein for biomedical applications

2013 ◽  
Vol 1498 ◽  
pp. 121-125
Author(s):  
Ali Fathi ◽  
Hua Wei ◽  
Wojciech Chrzanowski ◽  
Anthony S. Weiss ◽  
Fariba Dehghani
Keyword(s):  
Biomedical Applications ◽  
Room Temperature ◽  
Aqueous Media ◽  
Ester Group ◽  
Biological Properties ◽  
Water Soluble ◽  
Hydroxyethyl Methacrylate ◽  
Musculoskeletal Tissue ◽  
Temperature Responsive ◽  
Model Protein

ABSTRACTThe aim of this study was to develop a thermo-responsive and bioactive polymer with suitable mechanical properties for musculoskeletal tissue engineering applications. A copolymer was synthesized that comprised of hydrophilic polyethylene glycol, thermo responsive N-isopropylacrylamide (NIPAAm), 2-hydroxyethyl methacrylate-poly(lactide) (HEMA-PLA) to enhance mechanical strength and an active N-acryloxysuccinimide (NAS) group for conjugation to proteins to enhance biological properties. A model protein such as elastin was used to assess the feasibility of conjugating this polymer to protein. The results of 1HNMR analyses confirmed that random polymerization was viable technique for synthesis of this copolymer. The co-polymers synthesized with PEG content of 3 mol% were water soluble. A hydrogel was created by dissolving the copolymer and elastin below room temperature in aqueous media, followed by rapid gelation at 37°C. The results of Fourier transform infrared analyses confirmed the conjugation of protein to copolymer due to significant reduction of ester group absorption (1735 cm−1). This data confirmed molecular interaction between protein and the temperature responsive co-polymer. Our preliminary results demonstrated that it is viable to tune different properties of this hydrogel by changing the composition of co-polymer.

Water-soluble poly(N-isopropylacrylamide) nanoparticles grafted to trivalent lanthanide complexes as highly sensitive ratiometric nanothermometers

2020 ◽  
Vol 44 (19) ◽  
pp. 8068-8075
Author(s):  
Josiane Aparecida Sobrinho ◽  
Gilmar Araújo Brito Júnior ◽  
Italo Odone Mazali ◽  
Fernando Aparecido Sigoli
Keyword(s):  
Lanthanide Complexes ◽  
Polymeric Nanoparticles ◽  
Thermal Sensitivity ◽  
Water Soluble ◽  
Temperature Responsive ◽  
Highly Sensitive ◽  
Trivalent Lanthanide ◽  
Good Repeatability ◽  
Soluble Poly

A new water-soluble, luminescent ratiometric nanothermometer with a tunable temperature-responsive range, high thermal sensitivity and good repeatability was designed and synthesized by grafting lanthanide complexes to pNIPAM polymeric nanoparticles.

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