ABC Supramolecular Triblock Copolymer by ROMP and ATRP

Diane S. Lye, Yan Xia, Madeleine Z. Wong, Yufeng Wang, Mu Ping Nieh, Marcus Weck

Research output: Research - peer-reviewArticle

Abstract

We report the controlled polymerization of three heterotelechelic polymers from supramolecular motif-bearing initiators, their assembly into supramolecular A/B/C triblock copolymers, the morphology of the resulting block copolymers, and their disassembly. The individual blocks are synthesized in a controlled or living fashion via ring-opening metathesis polymerization (ROMP) of norbornenes (block B) or atom-transfer radical polymerization (ATRP) of styrenes (block A) and methacrylates (block C). The building blocks are assembled via metal-coordination between blocks A and B using a palladated SCS pincer complex and pyridine, and hydrogen bonding between blocks B and C using Hamilton Wedge and barbituric acid derivatives. Scanning-transmission electron microscopy and small-angle X-ray scattering reveal lamellar domains of approximately 23, 15, and 21 nm for bulk samples of the A/B and B/C diblock copolymers and A/B/C triblock copolymers, with 1:1 and 1:1:1 block feed ratios, respectively. Nanoscale features are destroyed when the materials are exposed to dimethylformamide and/or triphenylphospine, removing noncovalent linkages between individual blocks.

LanguageEnglish (US)
Pages4244-4255
Number of pages12
JournalMacromolecules
Volume50
Issue number11
DOIs
StatePublished - Jun 13 2017

Fingerprint

Atom transfer radical polymerization
Ring opening polymerization
Block copolymers
Styrenes
Bearings (structural)
Dimethylformamide
Methacrylates
X ray scattering
Hydrogen bonds
Polymers
Metals
Polymerization
Transmission electron microscopy
Derivatives
Scanning electron microscopy
barbituric acid
pyridine
Pyridine
Styrene
Acids

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Lye, D. S., Xia, Y., Wong, M. Z., Wang, Y., Nieh, M. P., & Weck, M. (2017). ABC Supramolecular Triblock Copolymer by ROMP and ATRP. Macromolecules, 50(11), 4244-4255. DOI: 10.1021/acs.macromol.7b00169

ABC Supramolecular Triblock Copolymer by ROMP and ATRP. / Lye, Diane S.; Xia, Yan; Wong, Madeleine Z.; Wang, Yufeng; Nieh, Mu Ping; Weck, Marcus.

In: Macromolecules, Vol. 50, No. 11, 13.06.2017, p. 4244-4255.

Research output: Research - peer-reviewArticle

Lye, DS, Xia, Y, Wong, MZ, Wang, Y, Nieh, MP & Weck, M 2017, 'ABC Supramolecular Triblock Copolymer by ROMP and ATRP' Macromolecules, vol 50, no. 11, pp. 4244-4255. DOI: 10.1021/acs.macromol.7b00169
Lye DS, Xia Y, Wong MZ, Wang Y, Nieh MP, Weck M. ABC Supramolecular Triblock Copolymer by ROMP and ATRP. Macromolecules. 2017 Jun 13;50(11):4244-4255. Available from, DOI: 10.1021/acs.macromol.7b00169
Lye, Diane S. ; Xia, Yan ; Wong, Madeleine Z. ; Wang, Yufeng ; Nieh, Mu Ping ; Weck, Marcus. / ABC Supramolecular Triblock Copolymer by ROMP and ATRP. In: Macromolecules. 2017 ; Vol. 50, No. 11. pp. 4244-4255
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