A polymer electrolyte by ozonolysis of poly(3-(trimethoxysilyl) propyl methacrylate) grafted on natural rubber latex in colloid state and its application

  • Pensiri Silakul
  • Rathanawan MagaraphanEmail author
Original Research


Polar species of natural rubber (NR) core were produced from PMPS-g-NR using ozonolysis. Poly(3-(trimethoxysilyl) propyl methacrylate) (PMPS) coated on NR particles (PMPS-g-NR) was successfully prepared by surface grafting polymerization using a redox couple initiator. PMPS-g-NR was treated by ozone at different feeding rates (50, 75, 100, and 125 mg/h) and treatment times (15, 30, 60, and 120 min) leading to an increase in polar function. Fourier transform infrared spectrometry (FTIR) showed that unsaturated bond (840 cm−1) was consumed by ozone resulting in higher intensities of carbonyl and carboxyl groups. The highest percent gel content of ozonized PMPS-g-NR was found at 100 mg/h at each ozone treatment time. After preparation as a polymer electrolyte, the electrical properties were significantly improved. Ozonized PMPS-g-NR showed that the highest ionic conductivity of ozonized PMPS-g-NR was 1.96 mS cm−1 using an ozone feeding rate of 75 mg/h for 60 min while PMPS-g-NR was 0.41 mS cm−1. The solar cell conversion efficiency (ƞ) of ozonized PMPS-g-NR at 75 mg/h for 60 min was 1.51% having a higher value than PMPS-g-NR (0.35%). For thermal stress stability, normalized ƞ value of ozonized PMPS-g-NR remained at 6.25% after 26 days while normalized ƞ of PMPS-g-NR was 27.27% at 22 days and then reduced to an approaching zero value.


Ozonolysis Natural rubber Polymer electrolyte Core–shell polymers Dye sensitized solar cells (DSSCs) 



This work was supported by Center of Excellence on Petrochemical and Materials Technology, Bangkok, Thailand; and the Petroleum and Petrochemical College, Chulalongkorn University.

Supplementary material

13726_2019_714_MOESM1_ESM.doc (212 kb)
Fig. S1 1H NMR spectrum of PMPS-g-NR in CDCl3 (DOC 211 kb)


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Copyright information

© Iran Polymer and Petrochemical Institute 2019

Authors and Affiliations

  1. 1.The Petroleum and Petrochemical CollegeChulalongkorn UniversityBangkokThailand
  2. 2.Center of Excellence on Petrochemical and Materials TechnologyBangkokThailand
  3. 3.Polymer Processing and Polymer Nanomaterials Research Unit, Petroleum and Petrochemical CollegeChulalongkorn UniversityBangkokThailand
  4. 4.Green Materials for Industrial Application Research Unit, Faculty of ScienceChulalongkorn UniversityBangkokThailand

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