---
_id: '32865'
abstract:
- lang: eng
  text: For the first time, poly(N-isopropylacrylamide) (PNIPAAm) star polymers with
    a β-cyclodextrin core are characterized in detail by size-exclusion chromatography
    (SEC) with triple detection to experimentally verify the number of arms. A combination
    of a refractive index detector, multi-angle laser light scattering detector, and
    an online-viscosimeter was used for branching analysis. At first, the SEC system
    was calibrated and the detector setup was validated using linear polystyrene reference
    polymers. The applicability of the established triple detection SEC for branching
    analysis was shown by the analysis of two commercially available polystyrene star
    polymers. Due to the high molar masses of the star polymers, both the contraction
    ratio g and g′ could be determined independently, thus allowing the calculation
    of the viscosity shielding ratio ε. Finally, the branching analysis of the PNIPAAm
    star polymers could experimentally confirm the assumed arm number of up to 21
    arms. Moreover, an increasingly compact molecular structure and the influence
    of the arm number on the viscosity shielding ratio could be shown.
author:
- first_name: Artjom
  full_name: Herberg, Artjom
  id: '94'
  last_name: Herberg
- first_name: Dirk
  full_name: Kuckling, Dirk
  id: '287'
  last_name: Kuckling
citation:
  ama: Herberg A, Kuckling D. Branching analysis of β-cyclodextrin-based poly(<i>N</i>-isopropylacrylamide)
    star polymers using triple detection SEC. <i>International Journal of Polymer
    Analysis and Characterization</i>. Published online 2022:1-19. doi:<a href="https://doi.org/10.1080/1023666x.2022.2110133">10.1080/1023666x.2022.2110133</a>
  apa: Herberg, A., &#38; Kuckling, D. (2022). Branching analysis of β-cyclodextrin-based
    poly(<i>N</i>-isopropylacrylamide) star polymers using triple detection SEC. <i>International
    Journal of Polymer Analysis and Characterization</i>, 1–19. <a href="https://doi.org/10.1080/1023666x.2022.2110133">https://doi.org/10.1080/1023666x.2022.2110133</a>
  bibtex: '@article{Herberg_Kuckling_2022, title={Branching analysis of β-cyclodextrin-based
    poly(<i>N</i>-isopropylacrylamide) star polymers using triple detection SEC},
    DOI={<a href="https://doi.org/10.1080/1023666x.2022.2110133">10.1080/1023666x.2022.2110133</a>},
    journal={International Journal of Polymer Analysis and Characterization}, publisher={Informa
    UK Limited}, author={Herberg, Artjom and Kuckling, Dirk}, year={2022}, pages={1–19}
    }'
  chicago: Herberg, Artjom, and Dirk Kuckling. “Branching Analysis of β-Cyclodextrin-Based
    Poly(<i>N</i>-Isopropylacrylamide) Star Polymers Using Triple Detection SEC.”
    <i>International Journal of Polymer Analysis and Characterization</i>, 2022, 1–19.
    <a href="https://doi.org/10.1080/1023666x.2022.2110133">https://doi.org/10.1080/1023666x.2022.2110133</a>.
  ieee: 'A. Herberg and D. Kuckling, “Branching analysis of β-cyclodextrin-based poly(<i>N</i>-isopropylacrylamide)
    star polymers using triple detection SEC,” <i>International Journal of Polymer
    Analysis and Characterization</i>, pp. 1–19, 2022, doi: <a href="https://doi.org/10.1080/1023666x.2022.2110133">10.1080/1023666x.2022.2110133</a>.'
  mla: Herberg, Artjom, and Dirk Kuckling. “Branching Analysis of β-Cyclodextrin-Based
    Poly(<i>N</i>-Isopropylacrylamide) Star Polymers Using Triple Detection SEC.”
    <i>International Journal of Polymer Analysis and Characterization</i>, Informa
    UK Limited, 2022, pp. 1–19, doi:<a href="https://doi.org/10.1080/1023666x.2022.2110133">10.1080/1023666x.2022.2110133</a>.
  short: A. Herberg, D. Kuckling, International Journal of Polymer Analysis and Characterization
    (2022) 1–19.
date_created: 2022-08-17T06:28:55Z
date_updated: 2023-01-10T08:13:52Z
department:
- _id: '163'
doi: 10.1080/1023666x.2022.2110133
keyword:
- Size-exclusion chromatography
- triple detection
- branching analysis
- star polymers
- poly(N-isopropylacrylamide)
- β-cyclodextrin
language:
- iso: eng
page: 1-19
publication: International Journal of Polymer Analysis and Characterization
publication_identifier:
  issn:
  - 1023-666X
  - 1563-5341
publication_status: published
publisher: Informa UK Limited
status: public
title: Branching analysis of β-cyclodextrin-based poly(<i>N</i>-isopropylacrylamide)
  star polymers using triple detection SEC
type: journal_article
user_id: '94'
year: '2022'
...
---
_id: '30932'
article_number: '678'
author:
- first_name: Artjom
  full_name: Herberg, Artjom
  id: '94'
  last_name: Herberg
- first_name: Xiaoqian
  full_name: Yu, Xiaoqian
  last_name: Yu
- first_name: Dirk
  full_name: Kuckling, Dirk
  id: '287'
  last_name: Kuckling
citation:
  ama: 'Herberg A, Yu X, Kuckling D. End Group Stability of Atom Transfer Radical
    Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives for
    Diblock Copolymer Synthesis. <i>Polymers</i>. 2019;11(4). doi:<a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>'
  apa: 'Herberg, A., Yu, X., &#38; Kuckling, D. (2019). End Group Stability of Atom
    Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide):
    Perspectives for Diblock Copolymer Synthesis. <i>Polymers</i>, <i>11</i>(4), Article
    678. <a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>'
  bibtex: '@article{Herberg_Yu_Kuckling_2019, title={End Group Stability of Atom Transfer
    Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
    for Diblock Copolymer Synthesis}, volume={11}, DOI={<a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>},
    number={4678}, journal={Polymers}, publisher={MDPI}, author={Herberg, Artjom and
    Yu, Xiaoqian and Kuckling, Dirk}, year={2019} }'
  chicago: 'Herberg, Artjom, Xiaoqian Yu, and Dirk Kuckling. “End Group Stability
    of Atom Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-Isopropylacrylamide):
    Perspectives for Diblock Copolymer Synthesis.” <i>Polymers</i> 11, no. 4 (2019).
    <a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>.'
  ieee: 'A. Herberg, X. Yu, and D. Kuckling, “End Group Stability of Atom Transfer
    Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
    for Diblock Copolymer Synthesis,” <i>Polymers</i>, vol. 11, no. 4, Art. no. 678,
    2019, doi: <a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>.'
  mla: 'Herberg, Artjom, et al. “End Group Stability of Atom Transfer Radical Polymerization
    (ATRP)-Synthesized Poly(N-Isopropylacrylamide): Perspectives for Diblock Copolymer
    Synthesis.” <i>Polymers</i>, vol. 11, no. 4, 678, MDPI, 2019, doi:<a href="https://doi.org/10.3390/polym11040678">https://doi.org/10.3390/polym11040678</a>.'
  short: A. Herberg, X. Yu, D. Kuckling, Polymers 11 (2019).
date_created: 2022-04-21T09:08:41Z
date_updated: 2022-04-21T09:09:00Z
department:
- _id: '311'
doi: https://doi.org/10.3390/polym11040678
intvolume: '        11'
issue: '4'
keyword:
- controlled radical polymerization
- atom transfer radical polymerization
- end group determination
- N-isopropylacrylamide
- block copolymerization
- smart polymers
- temperature sensitive polymers
- lower critical solution temperature
- ESI-TOF mass spectrometry
- ion mobility separation
- size exclusion chromatography
language:
- iso: eng
publication: Polymers
publication_status: published
publisher: MDPI
status: public
title: 'End Group Stability of Atom Transfer Radical Polymerization (ATRP)-Synthesized
  Poly(N-isopropylacrylamide): Perspectives for Diblock Copolymer Synthesis'
type: journal_article
user_id: '94'
volume: 11
year: '2019'
...