New Approach to Fabricate Microcapsules with Comb-Like Copolymer Shell by Phase Separation Method

Xiao Fen Tang; Wei Li; Xing Xiang Zhang

doi:10.4028/www.scientific.net/AMR.860-863.577

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 860-863New Approach to Fabricate Microcapsules with...

New Approach to Fabricate Microcapsules with Comb-Like Copolymer Shell by Phase Separation Method

Abstract:

Microcapsules containing n-octadecane (MicroC18) with n-octadecyl methacrylate (ODMA)-methacrylic acid (MAA) copolymer shell were fabricated through phase separation method, in which the shell-forming copolymers synthesized by free-radical solution polymerization. Meanwhile, theses copolymers were employed as the surfactant during microencapsulation. The crystallization temperature and crystallinity degree of comb-like copolymer display a gradual decrease with an increase the molar ratio of MAA. MicroC18 with spherical profiles and the diameter ranging from 3 to 20 μm were fabricated. In addition, the system pH value plays an important role in the formation process of microcapsules and the optimum value of pH in the range of 8.5-10.5.

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Periodical:

Advanced Materials Research (Volumes 860-863)

Pages:

577-581

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.860-863.577

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Online since:

December 2013

Authors:

Xiao Fen Tang, Wei Li, Xing Xiang Zhang*

Keywords:

Amphiphilic Copolymer, Microcapsule, Microstructure, Phase Separation

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