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Chemical Papers

, Volume 72, Issue 11, pp 2871–2877 | Cite as

A novel silane coupling agent with peroxy groups used as an initiator in the graft polymerization of AN or MMA on nano-TiO2

  • Yazhen WangEmail author
  • Rifang Li
  • Hongge JiaEmail author
  • Guoxing Yang
  • Yutao Di
  • Chenxi Xu
  • Liqun Ma
  • Hui Zhang
  • Yongli Zhou
  • Yu Zang
  • Shuangping Xu
  • Zhaoyang Sun
  • Liwu Zu
  • Chenge Yue
  • Tianyu Lan
Original Paper

Abstract

A novel peroxy group-containing silane coupling agent was synthesized and anchored on the surface of titanium dioxide nanoparticles (nano-TiO2) to form an immobilized-initiator-modified nano-TiO2 species. In this study, the kinetic parameters of the peroxy group-containing silane were tested and assessed using DSC. The pre-exponential factor (Ad) was 8.973 × 108 and the activation energy (Ea) was 80.736 kJ mol−1. Moreover, the empirical Arrhenius equation was determined to be ln Kd = − 80.736/RT + ln(8.973 × 108). To obtain continuous polymers, acrylonitrile (AN) and methyl methacrylate (MMA) were polymerized using the novel peroxy group-containing silane and FeSO4 as an initiator system. The number average molecular weights (Mn of PAN = 3×104 and Mn of PMMA = 1.4 × 105) and polydispersity indexes (PDI of PAN = 2.76 and PDI of PMMA = 1.65) were determined by GPC. It was suggested that the redox initiation system can generate highly reactive species on the surfaces of inorganic nanoparticles. The nano-TiO2-grafted polymers were successfully obtained.

Keywords

Silane coupling agent Peroxy groups Nanocomposites Surface modification 

List of symbols

Ad

Pre-exponential factor

Ea

Activation energy (kJ mol−1)

ΔHd

Temperature total decompound enthalpy (J g−1)

Kd

Decomposition constant (s−1)

R

Universal gas constant (8.314 J mol−1 K−1)

T

Kelvin temperature (K)

T0

Initial decomposition temperature (°C)

Notes

Acknowledgements

Financial and facility support for this research came from the National Natural Science Foundation of China (21376127), (U1162123) and (51103076), the Overseas Scholars Foundation of the Education Department of Heilongjiang Province of China (1251H012) and the Science and Technology Plan of Qiqihar City (GYGG-20602).

Supplementary material

11696_2018_524_MOESM1_ESM.doc (694 kb)
Supplementary material 1 (DOC 694 kb)

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Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2018

Authors and Affiliations

  1. 1.College of Materials Science and Engineering, Heilongjiang Province Key Laboratory of Polymeric Composite MaterialQiqihar UniversityQiqiharPeople’s Republic of China
  2. 2.College of Chemistry and Chemical EngineeringQiqihar UniversityQiqiharPeople’s Republic of China
  3. 3.Daqing Petrochemical Research Center, Petrochemical Research InstituteChina National Petroleum CorporationDaqingPeople’s Republic of China

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