NDLI: Synthesis of high molecular weight 3-arm star PMMA by ARGET ATRP

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Synthesis of high molecular weight 3-arm star PMMA by ARGET ATRP

Content Provider	Springer Nature Link
Author	Jeon, Hyun Jeong Youk, Ji Ho Ahn, Sung Hee Choi, Jin Hwan Cho, Kwang Soo
Copyright Year	2009
Abstract	High molecular weight (MW), 3-arm star poly(methyl methacrylate) (PMMA) with a narrow MW distribution (M $_{ n }$=570,000 g/mol, PDI=1.36) was successfully synthesized by activators regenerated by electron transfer (ARGET) atom transfer radical polymerization (ATRP). The polymerization was carried out with a trifunctional initiator/CuBr$_{2}$/N,N,N′,N′,N′-pentamethyldiethylenetriamine (PMDETA) initiator/catalyst system in the presence of a tin(II) 2-ethylhexanoate [Sn(EH)$_{2}$] reducing agent at 90 °C. The concentration of the copper catalyst was as low as 30 ppm, and a high initiation efficiency of the initiating sites was obtained. The chain-end functionality of the high MW, 3-arm star PMMA was confirmed by a chain extension experiment with styrene via ARGET ATRP, using the same catalyst system.
Starting Page	240
Ending Page	244
Page Count	5
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	17
Issue Number	4
e-ISSN	20927673
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	activators regenerated by electron transfer (ARGET) atom transfer radical polymerization (ATRP) star polymer poly(methyl methacrylate) high molecular weight Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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