Ordered Nanoporous Poly(cyclohexylethylene)
Abstract
Nanoporous poly(cyclohexylethylene) (PCHE) monoliths were prepared from ordered poly(cyclohexylethylene)−polylactide (PCHE−PLA) diblock copolymers. The copolymers were prepared by first the catalytic hydrogenation of hydroxyl end-functionalized polystyrene (PSOH) giving hydroxyl end-functionalized PCHEOH. The hydroxyl functionality was utilized to form a metal alkoxide macroinitiator which catalyzed the polymerization of d, l -lactide. The resultant PCHE−PLA block copolymers were characterized by differential scanning calorimetry (DSC), small-angle X-ray scattering (SAXS), and rheological analysis. The Flory−Huggins interaction parameter, χ (estimated from rheological, SAXS, and solubility parameter data), was approximated to be 3 times that of the corresponding PS−PLA material. PCHE−PLA block copolymers containing PLA cylinders were degraded under basic conditions to remove the PLA. The resulting nanoporous monoliths showed increased thermal stability by SAXS and DSC and improved solvent resistance over nanoporous PS. These robust properties make nanoporous PCHE very desirable as a template for the synthesis of nanomaterials.
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Since the hard block is poly(lactide), at a fixed molar mass, decreasing the polarity of the midblock segment effectively increases the segregation strength of the two blocks.
“Since in this work the hard block is poly(lactide), at a fi xed molar mass, decreasing the polarity of the midblock segment e ff ectively increases the segregation strength of the two blocks. 11,13,64,85 -89”
From Aliphatic Polyester Block Polymer Design (2016) · cites this paper as [86]
Cites
Fetters, L. J., Lohse, D. J., Richter, D., Witten, T. A., & Zirkel, A. (1994) · Macromolecules · doi:10.1021/ma00095a001 · Cited by 1,999 · see citing works
The Physics of Block Copolymers
Hamley, I. W. (1998) · doi:10.1093/oso/9780198502180.001.0001 · Cited by 1,913 · see citing works
Almdal, K., Hillmyer, M. A., & Bates, F. S. (2002) · Macromolecules · doi:10.1021/ma020148y · Cited by 62 · see citing works
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Aliphatic Polyester Block Polymer Design
Schneiderman, D. K., & Hillmyer, M. A. (2016) · Macromolecules · doi:10.1021/acs.macromol.6b00211 · Cited by 290 · see citing works
Self-citation
- Authors
- Wolf, J. H., & Hillmyer, M. A.
- Affiliations
- University of Minnesota (US)
- Corresponding author
- Hillmyer, Marc A.
- ORCID
- Hillmyer, Marc A.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-05-29
- Volume
- 19
- Issue
- 16
- Pages
- 6553-6560
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2104818318
- Cited by
- 54
- References
- 3
- Citations by year
- 2024: 2 · 2022: 1 · 2019: 2 · 2018: 1 · 2017: 4 · 2016: 6 · 2015: 1 · 2014: 3 · 2013: 3 · 2012: 4
- FWCI
- 2.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Langmuir (publishedVersion)
- Funders
- Division of Materials Research
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- block copolymers, polylactic acid, Flory-Huggins interaction parameter, block copolymer self-assembly, basic hydrolysis, thermal stability, solvent resistance
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