Preparation of Titanium-silphenylene-siloxane Hybrid Polymers with High Refractive Index, Transmittance, and Thermal Stability

Dong Zhao; Shu-Xi Shan; Meng Zhang; Xiao-A Zhang; Sheng-Ling Jiang; Ya-Fei Lyu

doi:10.1007/s10118-020-2398-6

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Preparation of Titanium-silphenylene-siloxane Hybrid Polymers with High Refractive Index, Transmittance, and Thermal Stability

ARTICLE | Updated：2020-03-24

- Preparation of Titanium-silphenylene-siloxane Hybrid Polymers with High Refractive Index, Transmittance, and Thermal Stability
- Chinese Journal of Polymer Science Vol. 38, Issue 9, Pages: 973-982(2020)
- Affiliations：
  
  Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Author bio：
  
  zhangxiaoa1982@163.com
- Funds：
- DOI：10.1007/s10118-020-2398-6
  CLC：
- Received：30 December 2019，
  
  Revised：2020-1-21，
  
  Accepted：01 February 2020，
  
  Online First：24 March 2020，
  
  Published：2020-09
- Accepted：
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Zhao, D.; Shan, S. X.; Zhang, M.; Zhang, X. A.; Jiang, S. L.; Lyu, Y. F. Preparation of titanium-silphenylene-siloxane hybrid polymers with high refractive index, transmittance, and thermal stability. Chinese J. Polym. Sci. 2020, 38, 973–982

Dong Zhao, Shu-Xi Shan, Meng Zhang, et al. Preparation of Titanium-silphenylene-siloxane Hybrid Polymers with High Refractive Index, Transmittance, and Thermal Stability[J]. Chinese Journal of Polymer Science, 2020, 38(9): 973-982.
Zhao, D.; Shan, S. X.; Zhang, M.; Zhang, X. A.; Jiang, S. L.; Lyu, Y. F. Preparation of titanium-silphenylene-siloxane hybrid polymers with high refractive index, transmittance, and thermal stability. Chinese J. Polym. Sci. 2020, 38, 973–982 DOI： 10.1007/s10118-020-2398-6.

Dong Zhao, Shu-Xi Shan, Meng Zhang, et al. Preparation of Titanium-silphenylene-siloxane Hybrid Polymers with High Refractive Index, Transmittance, and Thermal Stability[J]. Chinese Journal of Polymer Science, 2020, 38(9): 973-982. DOI： 10.1007/s10118-020-2398-6.

摘要

Abstract

Vinyl-containing titanium-silphenylene-siloxane oligomers (

and

) with different molar ratios of titanium to silicon were successfully synthesized in high yields by nonhydrolytic sol-gel reaction

and the obtained four oligomers were further crosslinked with methylphenyl hydro-silicone oil (

) to form corresponding polymers (

and

) by hydrosilylation reaction. Their structures were characterized with spectroscopic characterization techniques including FTIR

H-NMR

and Raman spectroscopy. The effect of titanium element on crosslinking behavior

thermal resistance

refractive index

transparency

thermal aging stability

glass transition temperature

and surface properties of the polymers were studied. Compared with titanium-free polymer

the thermal resistance

refractive index

and thermal aging stability of titanium-silphenylene-siloxane polymers (

and

) were significantly improved. The titanium-silphenylene-siloxane polymers achieved a high refractive index (

= 1.580−1.584) and thermostability (

500 °C). In thermal aging

the polymers exhibited superior performances with high optical transparency (~90% at 450 nm) and exhibited high thermal stability (~84% at 450 nm after thermal aging at 150 °C for 120 h). These data indicate that the polymers have potential application in optical materials such as LED encapsulants.

关键词

Keywords

references

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