Synthesis and Characterization of Poly(St-co-DMC)/SiO2 Hybrid and Hollow Nanoparticles

Shi-gan Chai; Jian-jun Yuan; Qi-chao Zou; Jin-zhi Zhang

doi:10.11777/j.issn1000-3304.2016.15192

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Synthesis and Characterization of Poly(St-co-DMC)/SiO2 Hybrid and Hollow Nanoparticles

Research Article | 更新时间：2021-03-19

- Synthesis and Characterization of Poly(St-co-DMC)/SiO2 Hybrid and Hollow Nanoparticles
- Acta Polymerica Sinica Issue 2, Pages: 250-255(2016)
- 作者机构：
  
  有机化工新材料湖北协同创新中心湖北大学化学化工学院有机功能高分子的合成和应用教育部重点实验室,武汉,430062
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2016.15192
  CLC：
- Published：20 February 2016，
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Shi-gan Chai, Jian-jun Yuan, Qi-chao Zou, Jin-zhi Zhang. Synthesis and Characterization of Poly(St-co-DMC)/SiO2 Hybrid and Hollow Nanoparticles. [J]. Acta Polymerica Sinica (2):250-255(2016)
DOI：

Shi-gan Chai, Jian-jun Yuan, Qi-chao Zou, Jin-zhi Zhang. Synthesis and Characterization of Poly(St-co-DMC)/SiO2 Hybrid and Hollow Nanoparticles. [J]. Acta Polymerica Sinica (2):250-255(2016) DOI： 10.11777/j.issn1000-3304.2016.15192.

摘要

采用无皂乳液聚合法合成了聚(苯乙烯-co-甲基丙烯酰氧乙基三甲基氯化铵)(poly(St-co-DMC))纳米粒子

平均粒径约为100 nm.以此纳米粒子为模板

在接近室温及pH为中性的温和条件下

以四甲氧基硅烷(TMOS)为硅源

合成了poly(St-co-DMC)/SiO2杂化纳米粒子

TEM结果显示该纳米粒子具有明显的核壳结构

SiO2主要沉积在壳层.进一步通过四氢呋喃溶解制备得到具有空心结构的纳米粒子

这种空心结构纳米粒子的FTIR图谱中既有SiO2的信号

也有poly(St-co-DMC)的信号

说明空心纳米粒子的壳层不完全是SiO2

对空心纳米粒子的TGA结果分析计算得到SiO2的含量仅为69.7%

说明纳米粒子的壳层为杂化壳层

并且

这种壳层的厚度随着反应温度的升高、反应时间的延长、TMOS用量的增加及聚合物模板中DMC含量的增加而增大.

Abstract

With the poly(St-co-DMC) as template

TMOS as silicon source

the poly(St-co-DMC)/SiO2 hybrid nanoparticles were synthesized under ambient temperature and neutral pH conditions.The TEM result of sliced sample confirmed that the hybrid nanoparticles possessed core-shell structure and that the SiO2 deposited mainly in the shell of the nanoparticles.Furthermore

the hybrid nanoparticles were dissolved with tetrahydrofuran to obtain the hollow nanoparticles.TEM results showed that the polymer core of the nanoparticles disappeared

generating nanoparticles with hollow structure.In addition

FTIR results confirmed that the hollow nanoparticles had the signal of both SiO2 and polymer which indicated that this hollow nanoparticles not only contained SiO2 but also poly(St-co-DMC).The content of SiO2 in the hollow hybrid nanoparticles of poly(St-co-DMC)/SiO2 was only 69.7% analyzed by TGA

indicating a left of 30.3% of polymer

which further confirmed that the hollow nanoparticles possessed hybrid shell.Finally

the effect of the reaction temperature

deposition time

the proportion of polymer/TMOS and the content of DMC in polymer template on the thickness of the hybrid nanoparticles shell was studied by TEM.The results showed that the thickness of the hybrid nanoparticles shell increased with raising the reaction temperature

increasing the deposition time

the proportion of TMOS/polymer and the higher content of DMC in polymer template.

关键词

poly(St-co-DMC)/SiO2杂化纳米粒子TMOS沉积

Keywords

Poly(St-co-DMC)/SiO2HybridNanoparticlesTMOSBiomimetic deposition

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Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University

Aerospace Research Institute of Materials & Processing Technology, Science and Technology on Advanced Functional Composites Technology

Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University

State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology

College of Materials and Textile Engineering, Jiaxing University

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