Grafting of Functional Monomers on Biomaterials - Biointerfaces: Where Material Meets Biology - page 321

Table 11.2 Examples of monomers that have been employed in the peroxy/hydroxyl grafting method as well as the polymer substrates that
were functionalised and the pre-treatment conditions used to introduce the peroxy radicals.

Functional
group

Polymer
substrate Step 1: pre-irradiation treatment Step 2: monomer grafting Ref.

Carboxyl PTFE (iii) Argon plasma (1200/2500 W, 30-360 s,

0.27 mbar)

AA (40 wt%, 80 1C) 45

PTFE (iv) Water plasma (400 W, 60 s, water pressure

2 10 3 mbar)

AA (vapour, 0.5-4 mbar, 30 min) 44

AA (0.03-0.11 g L 1 , UV radiation) PCL (iii) Argon plasma (37 W, 10 s, Ar pressure

0.67 mbar)

46

PHBV (iv) Oxygen plasma (120 W, 30 s, O 2 pressure

0.27 mbar)

AA (10 wt%, 75 1C) 47

HDPE (iii) Argon plasma (40 W, 3 min, Ar pressure

0.33 mbar)

AA (10-30 wt% in alcohol, 70 1C) 39

PTFE (ii) Gamma ray (5-20 kGy, irradiation in air) AA (50%) 48

PP (ii) Gamma ray (5-20 kGy, irradiation in air) AA (40% in water, 50 1C) 49

PCL (i) or (ii) Electron beam (50-700 kGy, irradiated in

air or nitrogen)

AA (30% in water, 25 1C) 41

Epoxy PE (i) Electron beam (200 kGy, irradiation in nitrogen) GMA (10% in methanol, 313 K) 40

Amine PCL (iii) Argon plasma (100 W, 30 s, Ar pressure

0.8 mbar)

AeMA (0.1-1.0 M, UV radiation) 50

Phosphate PE (iii) Argon plasma (24 W, 10 s) MOEP (water-acetic acid solution,

UV irradiation)

51

SPCL (iv) Oxygen plasma (30 W, 15 min, O 2 pressure

0.2 mbar)

VPA (0.1 M in 2-propanol, RT) 52

Sulfate SPCL (iv) Oxygen plasma (30 W, 15 min, O 2 pressure

0.2 mbar)

VSA (10 vol% in water, RT) 52

HDPE, high density polyethylene; VPA, vinyl phosphoric acid; VSA, vinyl sulfonic acid; SPCL, Starch/PCL blend 30/70 wt%.