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Linear gradient quality of ATRP copolymers

(2012) MACROMOLECULES. 45(21). p.8519-8531
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Abstract
The linear gradient quality and the control, over chain, length. and end. group functionality in the copolymerization of acrylates, methacrylates, and styrenes via atom transfer radical polymerization (ATRP) are evaluated by detailed kinetic Monte Carlo simulations with explicit tracking of macromolecules In all simulations, diffusionals. limitations on termination are taken into account : The linear gradient quality is characterized by a linear gradient deviation < GD > ranging between 0 and 1 For a < GD > value of 0.06 or lower, the linear gradient quality is defined as excellent, Whereas for < GD > values higher than 0.25 gradient copolymers Of poor quality are formed. (targeted chain length (TCL) = 100); Under batch ATRP conditions, using a catalytic system consistent with Cu(I)Br/PMDETA (PMDETA = N,N,N',N '',N ''-pentamethyldiethylenetriamine), an excellent control over chain length and end-group functionality is possible, and copolymers with a good linear gradient quality at final conversion can be prepared. Moreover, for sufficiently high conversions and depending on the monomer reactivity ratios, a strong correlation exists between < GD > and the polydispersity index (PDI), allowing an approximate assessment of the linear gradient quality based on PDI. For higher targeted chain lengths, this correlation shifts toward lower < GD > values under controlled ATRP conditions.
Keywords
ACTIVATION RATE CONSTANTS, TRANSFER RADICAL POLYMERIZATION, N-BUTYL ACRYLATE, EVALUATED RATE COEFFICIENTS, MONTE-CARLO-SIMULATION, METHYL-METHACRYLATE, BLOCK-COPOLYMERS, MOLECULAR BRUSHES, CHAIN TRANSFER, PERSPECTIVES

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Citation

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MLA
Van Steenberge, Paul, Dagmar D’hooge, Yu Wang, et al. “Linear Gradient Quality of ATRP Copolymers.” MACROMOLECULES 45.21 (2012): 8519–8531. Print.
APA
Van Steenberge, P., D’hooge, D., Wang, Y., Zhong, M., Reyniers, M.-F., Konkolewicz, D., Matyjaszewski, K., et al. (2012). Linear gradient quality of ATRP copolymers. MACROMOLECULES, 45(21), 8519–8531.
Chicago author-date
Van Steenberge, Paul, Dagmar D’hooge, Yu Wang, Mingjiang Zhong, Marie-Françoise Reyniers, Dominik Konkolewicz, Krzysztof Matyjaszewski, and Guy Marin. 2012. “Linear Gradient Quality of ATRP Copolymers.” Macromolecules 45 (21): 8519–8531.
Chicago author-date (all authors)
Van Steenberge, Paul, Dagmar D’hooge, Yu Wang, Mingjiang Zhong, Marie-Françoise Reyniers, Dominik Konkolewicz, Krzysztof Matyjaszewski, and Guy Marin. 2012. “Linear Gradient Quality of ATRP Copolymers.” Macromolecules 45 (21): 8519–8531.
Vancouver
1.
Van Steenberge P, D’hooge D, Wang Y, Zhong M, Reyniers M-F, Konkolewicz D, et al. Linear gradient quality of ATRP copolymers. MACROMOLECULES. 2012;45(21):8519–31.
IEEE
[1]
P. Van Steenberge et al., “Linear gradient quality of ATRP copolymers,” MACROMOLECULES, vol. 45, no. 21, pp. 8519–8531, 2012.
@article{3066006,
  abstract     = {The linear gradient quality and the control, over chain, length. and end. group functionality in the copolymerization of acrylates, methacrylates, and styrenes via atom transfer radical polymerization (ATRP) are evaluated by detailed kinetic Monte Carlo simulations with explicit tracking of macromolecules In all simulations, diffusionals. limitations on termination are taken into account : The linear gradient quality is characterized by a linear gradient deviation < GD > ranging between 0 and 1 For a < GD > value of 0.06 or lower, the linear gradient quality is defined as excellent, Whereas for < GD > values higher than 0.25 gradient copolymers Of poor quality are formed. (targeted chain length (TCL) = 100); Under batch ATRP conditions, using a catalytic system consistent with Cu(I)Br/PMDETA (PMDETA = N,N,N',N '',N ''-pentamethyldiethylenetriamine), an excellent control over chain length and end-group functionality is possible, and copolymers with a good linear gradient quality at final conversion can be prepared. Moreover, for sufficiently high conversions and depending on the monomer reactivity ratios, a strong correlation exists between < GD > and the polydispersity index (PDI), allowing an approximate assessment of the linear gradient quality based on PDI. For higher targeted chain lengths, this correlation shifts toward lower < GD > values under controlled ATRP conditions.},
  author       = {Van Steenberge, Paul and D'hooge, Dagmar and Wang, Yu and Zhong, Mingjiang and Reyniers, Marie-Françoise and Konkolewicz, Dominik and Matyjaszewski, Krzysztof and Marin, Guy},
  issn         = {0024-9297},
  journal      = {MACROMOLECULES},
  keywords     = {ACTIVATION RATE CONSTANTS,TRANSFER RADICAL POLYMERIZATION,N-BUTYL ACRYLATE,EVALUATED RATE COEFFICIENTS,MONTE-CARLO-SIMULATION,METHYL-METHACRYLATE,BLOCK-COPOLYMERS,MOLECULAR BRUSHES,CHAIN TRANSFER,PERSPECTIVES},
  language     = {eng},
  number       = {21},
  pages        = {8519--8531},
  title        = {Linear gradient quality of ATRP copolymers},
  url          = {http://dx.doi.org/10.1021/ma3017597},
  volume       = {45},
  year         = {2012},
}

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