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Preparation of hyperbranched polysiloxane containing terminal amino group and research on their luminescence properties

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Abstract

In order to obtain a polymer with good biocompatibility and aggregation induced luminescence, amino group was introduced into hyperbranched polysiloxane (HBPSi) structure by one-step transesterification, and two HBPSi containing terminal amino group (HBPSi-NH2) were prepared. It was worth noting that both of them exhibit good luminescence characteristics. To further study the relationship between their structure and luminescence intensities, the structure and molecular weight distribution of these two HBPSi-NH2 were studied by nuclear magnetic resonance spectroscopy (NMR), fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC), the luminescence properties of the prepared HBPSi-NH2 were characterized by fluorescence spectroscopy (PL). The results showed that the luminescence intensity of HBPSi-NH2 was affected by the molecular weight and dispersion. HBPSi-NH2 with low molecular weight can emit strong fluorescence, and in the good solvent (tetrahydrofuran, THF), the HBPSi-NH2 exhibit strong dispersion and leads to the weakest luminescence performance, while in bad solvent, it can lead to the weak dispersion and the strongest luminescence performance.

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Data Availability

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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Acknowledgements

This work was financially supported by the Shaanxi Province Innovation Capability Support Project (2023KJXX-067), the Xi 'an Science and Technology Plan Project (22GXFW0120-4), the Science and Technology Program of Xi'an (21XJZZ0066), the Open Foundation of Shaanxi Key Laboratory of Surface Engineering and Remanufacturing (2022SSER08), the Youth Innovation Team of Shaanxi Universities (Environmental Pollution Monitoring and Control Innovation Team, 51), and Research Team of Xi'an University (XAWLKYTD018).

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Authors and Affiliations

  1. College of Chemical Engineering, Xi’an University, Xi’an, China

    Yuan Jia, Juxiang Yang, Mingyang Ma, Beibei Li & Zhen Liu

  2. Xi’an Key Laboratory of Food Testing and Analysis Based On Evaluation, Xi’an, China

    Yuan Jia, Mingyang Ma & Beibei Li

  3. The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Xi’an, Shaanxi, 710065, P.R. China

    Yuan Jia

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  1. Yuan Jia
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Correspondence to Yuan Jia.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled “Preparation of hyperbranched polysiloxane containing terminal amino group and research on their luminescence properties”.

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Jia, Y., Yang, J., Ma, M. et al. Preparation of hyperbranched polysiloxane containing terminal amino group and research on their luminescence properties. J Polym Res 31, 212 (2024). https://doi.org/10.1007/s10965-024-04057-6

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