Photoinitiated precipitation polymerization in liquid CO2
: Fast formation of crosslinked poly(acrylic acid-co
-methoxy polyethylene glycol acrylate) microspheres

For the first time, by using precipitation polymerization in an aqueous solution, a cross-linked poly(acrylic acid)—(pAA) nanogel was synthesized. pAA was synthesized and cross-linked with N , N ′-methylenebisacrylamide (BIS) at 70°C in an acidified environment (pH 2) and containing 0.7 M NaCl using potassium persulfate as the initiator. Ionized pAA was soluble in water. The use of sodium chloride at low pH caused a decrease in the solubility of pAA and led to its precipitation and formation of cross-linked pAA nanogel. By using electron microscopies and light scattering techniques, the morphology, pH sensitivity and zeta potential of the obtained p(AA-BIS) nanogel were evaluated. The polymerization in an aqueous environment resulted in a very big swelling/shrinking coefficient (of approx. 4000) in response to pH and exhibited an unusually high negative zeta potential (of approx. −130 mV). These properties make the nanogel a very interesting sorbent and a construction material.

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Complex formation between poly(acrylic acid) and pyrene-labeled polyethylene glycol in aqueous solution

Macromolecules ◽

10.1021/ma00169a002 ◽

1987 ◽

Vol 20 (3) ◽

pp. 474-480 ◽

Cited By ~ 66

Author(s):

Hideko Tamaru Oyama ◽

Wing T. Tang ◽

Curtis W. Frank

Keyword(s):

Aqueous Solution ◽

Polyethylene Glycol ◽

Complex Formation ◽

Acrylic Acid ◽

Poly Acrylic Acid

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Poly(acrylic acid)/polyethylene glycol hygrogel prepared by using gamma-ray irradiation for mucosa adhesion

Journal of the Korean Physical Society ◽

10.3938/jkps.66.17 ◽

2015 ◽

Vol 66 (1) ◽

pp. 17-21

Author(s):

Young-Chang Nho ◽

Jong-Seok Park ◽

Jung-Woong Shin ◽

Youn-Mook Lim ◽

Sung-In Jeong ◽

...

Keyword(s):

Polyethylene Glycol ◽

Acrylic Acid ◽

Gamma Ray ◽

Gamma Ray Irradiation ◽

Poly Acrylic Acid

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Cellulose Nanocrystals versus Polyethylene Glycol as Toughening Agents for Poly(Lactic Acid)-Poly(Acrylic Acid) Graft Copolymer

JOURNAL OF RENEWABLE MATERIALS ◽

10.7569/jrm.2016.634126 ◽

2016 ◽

Vol 4 (5) ◽

pp. 340-350 ◽

Cited By ~ 1

Author(s):

Jose Luis Orellana ◽

Michael Mauhar ◽

Christopher L. Kitchens

Keyword(s):

Lactic Acid ◽

Polyethylene Glycol ◽

Acrylic Acid ◽

Graft Copolymer ◽

Cellulose Nanocrystals ◽

Poly Lactic Acid ◽

Poly Acrylic Acid

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Synthesis of a novel pH responsive phyllosilicate loaded polymeric hydrogel based on poly(acrylic acid-co-N-vinylpyrrolidone) and polyethylene glycol for drug delivery: modelling and kinetics study for the sustained release of an antibiotic drug

RSC Advances ◽

10.1039/c4ra16119j ◽

2015 ◽

Vol 5 (24) ◽

pp. 18312-18327 ◽

Cited By ~ 36

Author(s):

Sayan Ganguly ◽

Narayan C. Das

Keyword(s):

Drug Delivery ◽

Polyethylene Glycol ◽

Acrylic Acid ◽

Sustained Release ◽

Ph Sensitive ◽

Kinetics Study ◽

Ph Responsive ◽

Polymeric Network ◽

Antibiotic Drug ◽

Poly Acrylic Acid

In this study, we developed a novel pH-sensitive composite interpenetrating polymeric network (IPN) hydrogel based on polyethylene gylcol (PEG) and poly(acrylic acid-co-N-vinylpyrrolidone) crosslinked with N,N-methylenebisacrylamide (MBA).

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