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Synthesis of poly(urea–formaldehyde) encapsulated dibutyltin dilaurate through the self-catalysis of core materials

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Abstract

Polymeric microcapsules (MCs) filled with catalyst can be controlled to release the catalyst to initiate the polymerization reaction. In the present work, poly(urea–formaldehyde) (PUF) MCs filled with DBTDL (PUF/DBTDL MCs) were prepared using urea (U) and formaldehyde (F) as the wall shell materials by in situ polymerization. The U–F resins could easily polymerize in the presence of the core material DBTDL to produce PUF polymers, then they deposited on the surface of the DBTDL droplets, forming PUF/DBTDL MCs. The decomposition temperature (T d) at 5 % weight loss of PUF/DBTDL MCs was about 245 °C. The application of PUF/DBTDL MCs to cyanate ester resins preliminarily showed the reaction control capability of the MCs due to the slow release of DBTDL through the wall shell.

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Acknowledgments

We thank “Jiangsu Government Scholarship for Overseas Studies” (2011–2012), National Natural Science Foundation of China (50903058 and 51273135), Scientific Research & Innovation Project of Graduate Students in Colleges and Universities of Jiangsu Province (CXLX12_0802) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). SN acknowledges support from the Gill Composites Center.

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Authors and Affiliations

  1. College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic of China

    Li Yuan, Aijuan Gu, Guozheng Liang & Guoqiang Chen

  2. Jiangsu Yingxiang Chemical Fiber Stock Co., Ltd, Wujiang, 215228, People’s Republic of China

    Li Yuan, Aijuan Gu, Guozheng Liang & Yongming Gao

  3. Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA

    Li Yuan, Sidi Huang & Steven Nutt

  4. Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic of China

    Li Yuan, Feng Chen, Aijuan Gu, Guozheng Liang & Chao Lin

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  1. Li Yuan
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  2. Feng Chen
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  3. Aijuan Gu
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  8. Guoqiang Chen
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  9. Yongming Gao
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Correspondence to Li Yuan.

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Yuan, L., Chen, F., Gu, A. et al. Synthesis of poly(urea–formaldehyde) encapsulated dibutyltin dilaurate through the self-catalysis of core materials. Polym. Bull. 71, 261–273 (2014). https://doi.org/10.1007/s00289-013-1059-0

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  • DOI: https://doi.org/10.1007/s00289-013-1059-0

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