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Table 1 Element concentrations of C, O, S, and Ag determined by XPS in surface polymer layer

From: Immobilization of silver nanoparticles on polyethylene terephthalate

Sample

Element concentration (at.%)

 

C(1s)

O(1s)

S(2p)

Ag(3d)

PET

72.5

27.5

-

-

PET/plasma

29.0

71.0

-

-

PET/plasma/BPD

75.4

18.9

5.7

-

PET/plasma/BPD/AgNP

75.0

23.1

1.1

0.8

PET/plasma/AgNP*

77.1

22.5

0.4

-

  1. Pristine (PET), PET treated by plasma (PET/plasma), PET treated by plasma and grafted with BPD (PET/plasma/BPD), PET treated by plasma and grafted with BPD and then grafted with AgNP (PET/plasma/BPD/AgNP), and PET treated by plasma and grafted with AgNP* (PET/plasma/AgNP*) 4 days after the treatment.

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