Thermoresponsive Polymeric Nanoparticles: Nucleation from Cooperative Polymerization Driven by Dative Bonds

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• 作者：Longyu Li ; Conghui Yuan ; Lizong Dai ; S. Thayumanavan
• 刊名：Macromolecules
• 出版年：2014
• 出版时间：September 9, 2014
• 年：2014
• 卷：47
• 期：17
• 页码：5869-5876
• 全文大小：478K
• ISSN：1520-5835

文摘

Cooperative polymerization, aided by the nucleation鈥揺longation mechanism, has the promise of providing polymers and nanostructures that are otherwise inaccessible. The molecular origin of the cooperative growth of polymers is driven by a secondary interaction, often based on polarization, electrostatics, or sterics-driven secondary structure. Here, we demonstrate that covalent dative interactions can be used to achieve cooperative polymerization. Our results suggest that the initial polymer formation serves as the nucleus for monodisperse nanoparticle assembly. The dynamic nature of the dative interaction in this equilibrium self-assembly has been shown to endow these nanoparticles with thermal responsive characteristics.