Polymerization of n-butyl acrylate with high concentration of a chain transfer agent (CBr4): detailed characterization and impact on branching

Literature Information

Publication Date 2013-01-08
DOI 10.1039/C2PY21123H
Impact Factor 5.582
Authors

A. Agirre, J. I. Santos, A. Etxeberria, V. Sauerland, J. R. Leiza


View Original

Abstract

Poly(n-butyl acrylate) (polyn-BA) polymers synthesized by radical bulk polymerization in the presence and absence of a high concentration (0.4 mol L−1) of carbon tetrabromide (CBr4) as a chain transfer agent at nominal temperatures of 60, 100 and 140 °C were fully characterized by 1D and 2D NMR, SEC/MALS and MALDI-TOF mass spectrometry. The structures generated by chain transfer to CBr4 in secondary chain-end radicals and reinitiation of polymer chains by CBr3 radicals formed by chain transfer to CBr4 reactions were identified by MALDI-TOF and NMR analysis. The potential structures that might have been created by chain-transfer to tertiary radicals (quaternary carbons with a Br unit) formed by backbiting or intermolecular chain transfer to polymer could not be detected and hence their abundance was not important. The branching density (BD) of the polymers synthesized in the presence and absence of CBr4 was also determined. The BD increases with temperature in both cases, and for each temperature the branching density considerably reduced when CBr4 was employed in the polymerization as found for other transfer agents and controlled radical mediated polymerizations. However, the explanation that patching on the tertiary radicals was the cause of reduction of the branching in the polyn-BA was discarded in this case because the resulting structures could not be identified.

Related Literature

Oligo(fluorenyleneethynylenegermylene)s and their metallopolymers

Wai-Yeung Wong, Suk-Yue Poon, Albert W.-M. Lee, Jian-Xin Shi, Kok-Wai Cheah

2004-09-23 Communication

DOI: 10.1039/B409580D

Structurally diverse Rh(i) and Mn(i) complexes derived from the new ambidentate indeneligand, (1-{iPr2P(S)}-2-{NMe2})C9H6

Dominik Wechsler, Robert McDonald, Michael J. Ferguson, Mark Stradiotto

2004-09-21 Communication

DOI: 10.1039/B410328A

First lanthanide dipolar complexes for second-order nonlinear optics

Katell Sénéchal, Loïc Toupet, Isabelle Ledoux, Joseph Zyss, Hubert Le Bozec, Olivier Maury

2004-09-08 Communication

DOI: 10.1039/B407073A

Unexpected oxidative C–C cleavage in the metallation of 2-substituted imidazolium salts to give N-heterocyclic carbene complexes

Anthony R. Chianese, Brian M. Zeglis, Robert H. Crabtree

2004-08-25 Communication

DOI: 10.1039/B409672J

En route to coordination chemistry under confined conditions in a porous capsule: Pr3+ with different coordination shells

Achim Müller, Yunshan Zhou, Lijuan Zhang, Hartmut Bögge, Marc Schmidtmann, Martin Dressel, Joris van Slageren

2004-08-13 Communication

DOI: 10.1039/B407753A

A samarium cyclooctatetraene complex as catalyst for hydroamination/cyclisation catalysis

Agustino Zulys, Tarun K. Panda, Michael T. Gamer, Peter W. Roesky

2004-09-30 Communication

DOI: 10.1039/B410918J

An active ferrocenyl triarylphosphine for palladium-catalyzed Suzuki–Miyaura cross-coupling of aryl halides

Fuk Yee Kwong, Kin Shing Chan, Chi Hung Yeung, Albert S. C. Chan

2004-09-21 Communication

DOI: 10.1039/B407661C

Hierarchical self-assembly in polymeric complexes: Towards functional materials

Olli Ikkala, Gerrit ten Brinke

2004-09-16 Feature Article

DOI: 10.1039/B403983A

A mixed ladderane/n-alkyl glycerol diether membrane lipid in an anaerobic ammonium-oxidizing bacterium

Jaap S. Sinninghe Damsté, W. Irene C. Rijpstra, Marc Strous, Mike S. M. Jetten, Olivier R. P. David, Jan A. J. Geenevasen, Jan H. van Maarseveen

2004-09-30 Communication

DOI: 10.1039/B409806D

You might also like

Compound Q&A

What is 1-(2,4,6-Trifluorophenyl)ethanol (CAS: 1250113-83-7)?

1-(2,4,6-Trifluorophenyl)ethanol is an organic compound with the CAS number 1250...

1250113-83-71-(2,4,6-Trifluoroph...
Compound Q&A

Is 1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) safe?

1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) is ...

919111-34-51-(2,4-Dimethoxybenz...
Compound Q&A

What are the physical and chemical properties of (7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one (CAS: 51419-51-3)?

(7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one is a crystal...

51419-51-3(7S,15R)-6β,15-Diace...
Compound Q&A

What regulatory guidelines apply to rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3618-04-0)?

The compound rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3...

3618-04-0rac-ethyl (1r,4r)-4-...
Compound Q&A

What is the market or research trend for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3)?

The market for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3) is cur...

175135-62-32-(2,4-Difluoropheno...
Compound Q&A

What are the main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9)?

The main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9) include research in ...

157-03-96-Diazo-5-oxo-L-norl...
Compound Q&A

What precautions should be taken when handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5)?

When handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5), i...

173308-19-52-Aminoethyl-mono-am...
Compound Q&A

How is 5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) typically synthesized?

5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) can be synthesi...

178488-37-45-Methylimidazo[1,2-...
Compound Q&A

Are there alternatives to 2,4,6-Trihydroxyisophthalaldehyde (CAS: 4396-13-8) in synthesis?

There are alternative reagents that can be used in the synthesis of 2,4,6-Trihyd...

4396-13-82,4,6-Trihydroxyisop...
Compound Q&A

What is (2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid (CAS: 179461-52-0)?

(2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid is a chemical compound wi...

179461-52-0(2Z)-3-(5-Fluoro-1H-...

Source Journal

Polymer Chemistry

Polymer Chemistry
CiteScore: 8.6
Self-citation Rate: 7.3%
Articles per Year: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.