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Synthesis of stimuli-responsive nanosized ring-like colloids and cyclic polymers via a dual-template approach.


ABSTRACT: Ring-like particles have received considerable attention due to their unique interior cavity and properties. However, the preparation of stimuli-responsive nanosized rings with internal size smaller than 100 nm remains unexplored likely due to the challenges encountered in their synthesis. The successful fulfillment of this target will not only significantly enrich the family of ring-like nanoparticles but also build a connection that bridges ring-like nanoparticles and cyclic polymers. For this purpose, we report in this study a controlled synthesis of stimuli-responsive ring-like colloids and cyclic polymers using both star-shaped polymers and β-cyclodextrin (β-CD) as the dual templates. The first template comprising star-shaped polymers generated a ring-like structure and adoption of β-CD as the second template further restricted the ring thickness to the height of a β-CD, leading to the generation of stimuli-responsive nanosized ring-like colloids with ring thickness less than 1 nm, which shifted the ring-like structure to cyclic polymers with reversible cross-linked disulfide bridges. The reported "dual-template" approach is thus a valuable alternative to the current synthetic strategies toward stimuli-responsive ring-like colloids and cyclic polymers.

SUBMITTER: Peng J 

PROVIDER: S-EPMC6471857 | biostudies-other | 2019 Apr

REPOSITORIES: biostudies-other

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Synthesis of stimuli-responsive nanosized ring-like colloids and cyclic polymers <i>via</i> a dual-template approach.

Peng Jinlei J   Zuo Cai C   Xiao Qi Q   Deng Kaicheng K   Meng Chao C   Liu Yuping Y   Zhang Miao M   Ma Liwei L   Pun Suzie H SH   Wei Hua H  

Chemical science 20190304 14


Ring-like particles have received considerable attention due to their unique interior cavity and properties. However, the preparation of stimuli-responsive nanosized rings with internal size smaller than 100 nm remains unexplored likely due to the challenges encountered in their synthesis. The successful fulfillment of this target will not only significantly enrich the family of ring-like nanoparticles but also build a connection that bridges ring-like nanoparticles and cyclic polymers. For this  ...[more]

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