Microencapsulation of hexadecane by surface-initiated atom transfer radical polymerization on a Pickering stabilizer

Dezhong Yin; Jinjie Liu; Wangchang Geng; Baoliang Zhang; Qiuyu Zhang

doi:10.1039/c4nj01533a

Microencapsulation of hexadecane by surface-initiated atom transfer radical polymerization on a Pickering stabilizer

Dezhong Yin, Jinjie Liu, Wangchang Geng, Baoliang Zhang, Qiuyu Zhang

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Hexadecane-loaded microcapsules with SiO₂-poly(methyl methacrylate) (PMMA) hybrids as shells were prepared by surface-initiated atom transfer radical polymerization (SI-ATRP) in an oil-in-water Pickering emulsion. ATRP-initiators were introduced onto SiO₂ particles by a homemade silane coupling reagent containing a 2-bromoisobutyrate group. SI-ATRP polymerization was conducted on Pickering stabilizers based on activators regenerated by electron transfer (ARGET). TGA results indicated that 80.3% of PMMA chains in the shell were covalently-bonded to SiO₂, which was formed by SI-ATRP polymerization. The microcapsules show excellent potential for thermal energy storage, as evidenced by a high melting enthalpy of 161.7 J g^-1.

Original language	English
Pages (from-to)	85-89
Number of pages	5
Journal	New Journal of Chemistry
Volume	39
Issue number	1
DOIs	https://doi.org/10.1039/c4nj01533a
State	Published - 1 Jan 2015

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title = "Microencapsulation of hexadecane by surface-initiated atom transfer radical polymerization on a Pickering stabilizer",

abstract = "Hexadecane-loaded microcapsules with SiO2-poly(methyl methacrylate) (PMMA) hybrids as shells were prepared by surface-initiated atom transfer radical polymerization (SI-ATRP) in an oil-in-water Pickering emulsion. ATRP-initiators were introduced onto SiO2 particles by a homemade silane coupling reagent containing a 2-bromoisobutyrate group. SI-ATRP polymerization was conducted on Pickering stabilizers based on activators regenerated by electron transfer (ARGET). TGA results indicated that 80.3% of PMMA chains in the shell were covalently-bonded to SiO2, which was formed by SI-ATRP polymerization. The microcapsules show excellent potential for thermal energy storage, as evidenced by a high melting enthalpy of 161.7 J g-1.",

author = "Dezhong Yin and Jinjie Liu and Wangchang Geng and Baoliang Zhang and Qiuyu Zhang",

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T1 - Microencapsulation of hexadecane by surface-initiated atom transfer radical polymerization on a Pickering stabilizer

AU - Yin, Dezhong

AU - Liu, Jinjie

AU - Geng, Wangchang

AU - Zhang, Baoliang

AU - Zhang, Qiuyu

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Hexadecane-loaded microcapsules with SiO2-poly(methyl methacrylate) (PMMA) hybrids as shells were prepared by surface-initiated atom transfer radical polymerization (SI-ATRP) in an oil-in-water Pickering emulsion. ATRP-initiators were introduced onto SiO2 particles by a homemade silane coupling reagent containing a 2-bromoisobutyrate group. SI-ATRP polymerization was conducted on Pickering stabilizers based on activators regenerated by electron transfer (ARGET). TGA results indicated that 80.3% of PMMA chains in the shell were covalently-bonded to SiO2, which was formed by SI-ATRP polymerization. The microcapsules show excellent potential for thermal energy storage, as evidenced by a high melting enthalpy of 161.7 J g-1.

AB - Hexadecane-loaded microcapsules with SiO2-poly(methyl methacrylate) (PMMA) hybrids as shells were prepared by surface-initiated atom transfer radical polymerization (SI-ATRP) in an oil-in-water Pickering emulsion. ATRP-initiators were introduced onto SiO2 particles by a homemade silane coupling reagent containing a 2-bromoisobutyrate group. SI-ATRP polymerization was conducted on Pickering stabilizers based on activators regenerated by electron transfer (ARGET). TGA results indicated that 80.3% of PMMA chains in the shell were covalently-bonded to SiO2, which was formed by SI-ATRP polymerization. The microcapsules show excellent potential for thermal energy storage, as evidenced by a high melting enthalpy of 161.7 J g-1.

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Microencapsulation of hexadecane by surface-initiated atom transfer radical polymerization on a Pickering stabilizer

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