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In‐situ photopolymerization of an oriented liquid‐crystalline acrylate
Abstract
The photoinitiated polymerization of 4‐biphenylyl 4‐(6‐acryloyloxyhexyloxy)benzoate (1) in its oriented liquid‐crystalline state was studied. Monomer 1 has a thermotropic nematic phase between 88°C and 98°C, a monotropic nematic phase between 76°C and 88°C, and a monotropic smectic phase below 76°C. The orientation of 1 was established in a glass cell provided with a rubber polyimide coating and characterized by birefringence measurements. During polymerization both the birefringence and the liquid‐crystalline transition temperatures increase, indicating that the orientation was maintained. The oriented poly(1) is polycrystalline at room temperature, becomes smectic at 90°C, nematic at 172°C, and isotropic at 190°C. The order parameter of the nematic poly(1) is lower than that of the nematic monomer 1 at equal reduced temperatures.
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Cited by
Molecularly-engineered, 4D-printed liquid crystal elastomer actuators
Saed, M. O., Ambulo, C. P., Kim, H., De, R., Raval, V., Searles, K., Siddiqui, D. A., Cue, J. M. O., Stefan, M. C., Shankar, M. R., et al. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201806412 · Cited by 383
Adaptable liquid crystal elastomers with transesterification-based bond exchange reactions
Hanzon, D. W., Traugutt, N. A., McBride, M. K., Bowman, C. N., Yakacki, C. M., & Yu, K. (2018) · Soft Matter · doi:10.1039/c7sm02110k · Cited by 128
Metadata
- Authors
- Broer, D. J., Finkelmann, H., & Kondo, K.
- Venue
- Die Makromolekulare Chemie
- Publisher
- Wiley
- Published
- 1988-01
- Volume
- 189
- Issue
- 1
- Pages
- 185-194
- ISSN
- 0025-116X (ISSN-L)
- OpenAlex
- W2020669015
- Cited by
- 283
- References
- 0
- FWCI
- 4.95
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: In‐situ photopolymerization of an oriented liquid‐crystalline acrylate. https://app.cochat.ai/papers/10.1002/macp.1988.021890117
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- Broer, D. J., Finkelmann, H., & Kondo, K. (1988). In‐situ photopolymerization of an oriented liquid‐crystalline acrylate. Die Makromolekulare Chemie. https://doi.org/10.1002/macp.1988.021890117
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