What question did this study set out to answer?

To evaluate the formation of inclusion complexes between poly(N-isopropylacrylamide) and cyclodextrins during in situ polymerization and assess their resulting cloud point behavior.

August 1, 1998Macromolecular Rapid Communications

Cloud point of poly(N-isopropylacrylamide) synthesized in the presence of cyclodextrin

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Authors

SHSeung Jun HanDongguk University MYMi Kyong YooKyung Hee University YSYong Kiel SungDongguk University

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Implication

Experimental study demonstrates elevated cloud point temperatures in poly(N-isopropylacrylamide) complexes with cyclodextrin, suggesting cavity-mediated thermal stabilization.

Key Points

To evaluate the formation of inclusion complexes between poly(N-isopropylacrylamide) and cyclodextrins during in situ polymerization and assess their resulting cloud point behavior.
Polymerized N-isopropylacrylamide in the presence of β-cyclodextrin or hydroxypropyl-β-cyclodextrin.
Verified the formation of inclusion complexes using FT-IR, 1H NMR, and 2D-NOESY NMR spectroscopy.
Measured and compared aqueous cloud point temperatures of synthesized inclusion complexes against physical polymer blends.
The cloud point of poly(N-isopropylacrylamide) within the synthesized β-cyclodextrin inclusion complex rose to approximately 57°C, compared to roughly 33°C in a simple physical blend.
The cloud point achieved with the β-cyclodextrin inclusion complex was higher than that observed for the hydroxypropyl-β-cyclodextrin complex.
Spectroscopic analyses demonstrated that poly(N-isopropylacrylamide) polymer chains threaded directly into the cyclodextrin cavities.

Cite This Study

Han et al. (1998) studied this question.

synapsesocial.com/papers/6a9ed37fd670aed10a479088 https://doi.org/10.1002/(sici)1521-3927(19980801)19:8<403::aid-marc403>3.0.co;2-s

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Implication

Experimental study demonstrates elevated cloud point temperatures in poly(N-isopropylacrylamide) complexes with cyclodextrin, suggesting cavity-mediated thermal stabilization.

Cloud point of poly(N-isopropylacrylamide) synthesized in the presence of cyclodextrin

Discussion

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Implication

Key Points

Cite This Study

Cloud point of poly(N-isopropylacrylamide) synthesized in the presence of cyclodextrin

Discussion

Member takes

Implication

Key Points

Cite This Study

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