+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Uniform PEO star polymers synthesized in water via free radical polymerization or atom transfer radical polymerization



Uniform PEO star polymers synthesized in water via free radical polymerization or atom transfer radical polymerization



Macromolecular Rapid Communications 32(1): 74-81



Amphiphilic star shaped polymers with poly(ethylene oxide) (PEO) arms and cross-linked hydrophobic core were synthesized in water via either conventional free radical polymerization (FRP) or atom transfer radical polymerization (ATRP) techniques using a simple "arm-first" method. In FRP, PEO based macromonomers (MM) were used as arm precursors, which were then cross-linked by divinylbenzene (DVB) using 2,2'-azoisobutyronitrile (AIBN). Uniform star polymers (Mw/Mn < 1.2) were achieved through adjustment of the ratio of PEO MM, DVB, and AIBN. While in case of ATRP, both PEO MM, and PEO based macroinitiator (MI) were used as arm precursors with ethylene glycol diacrylate as cross-linker. Even more uniform star polymers with less contamination by low MW polymers were obtained, as compared to the products synthesized by FRP.

(PDF emailed within 0-6 h: $19.90)

Accession: 056758691

Download citation: RISBibTeXText

PMID: 21432973

DOI: 10.1002/marc.201000477


Related references

Nanostructured hybrid hydrogels prepared by a combination of atom transfer radical polymerization and free radical polymerization. Biomaterials 30(29): 5270-5278, 2009

Synthesis of block copolymers by combination of atom transfer radical polymerization and visible light-induced free radical promoted cationic polymerization. Macromolecular Rapid Communications 33(4): 309-313, 2013

Synthesis of Star Polymers using Organocatalyzed Atom Transfer Radical Polymerization Through a Core-first Approach. Polymer Chemistry 9(13): 1658-1665, 2018

Beta-sheet side chain polymers synthesized by atom-transfer radical polymerization. Biomacromolecules 6(2): 825-831, 2005

Cysteine-reactive polymers synthesized by atom transfer radical polymerization for conjugation to proteins. Journal of the American Chemical Society 126(47): 15372-3, 2004

Vesicles from peptidic side-chain polymers synthesized by atom transfer radical polymerization. Biomacromolecules 9(11): 2997-3003, 2008

Rapid cellular internalization of multifunctional star polymers prepared by atom transfer radical polymerization. Biomacromolecules 11(9): 2199-2203, 2011

Star-shaped cationic polymers by atom transfer radical polymerization from beta-cyclodextrin cores for nonviral gene delivery. Biomacromolecules 10(2): 285-293, 2009

Multiarm cationic star polymers by atom transfer radical polymerization from β-cyclodextrin cores: influence of arm number and length on gene delivery. Acta Biomaterialia 9(1): 4726-4733, 2013

Degradable copolymers with incorporated ester groups by radical ring-opening polymerization using atom transfer radical polymerization. Polimery 62(4): 262-271, 2017

Facile Soap-Free Miniemulsion Polymerization of Methyl Methacrylate via Reverse Atom Transfer Radical Polymerization. Macromolecular Rapid Communications 33(24): 2121-2126, 2016

High-yield synthesis of uniform star polymers--is controlled radical polymerization always needed?. Chemistry 15(25): 6107-6111, 2009

Synthesis of Novel μ-Star Copolymers with Poly(N-Octyl Benzamide) and Poly(ε-Caprolactone) Miktoarms through Chain-Growth Condensation Polymerization, Styrenics-Assisted Atom Transfer Radical Coupling, and Ring-Opening Polymerization. Macromolecular Rapid Communications 38(3), 2016

Atom transfer radical polymerization (ATRP) and organometallic mediated radical polymerization (OMRP) of styrene mediated by diaminobis(phenolato)iron(II) complexes: a DFT study. Inorganic Chemistry 53(14): 7580-7590, 2014

Biotinylated glycopolymers synthesized by atom transfer radical polymerization. Biomacromolecules 7(8): 2297-2302, 2006