TPU

Composition

molar ratio a

PDMS block

PPO block

HS content (%) b

Theoretic

NCO content (%)

Mw (g/mol)

Mw (g/mol)

TPU-1

0.35:1.38:1

1636

600

30

6.28

TPU-2

0.3:1.33:1

1636

800

30

6.50

TPU-3

0.25:1.275:1

1636

1000

30

6.69

TPU-4

0.23:1.25:1

1636

1200

30

6.80

TPU-5

0.2:1.123:1

1636

1500

30

6.96