Table 1 Screening for polymer mixtures undergoing PIPS upon UV irradiation

From: Cell-guiding microporous hydrogels by photopolymerization-induced phase separation

nPVA [%]

5

PIPS

PS

4

PIPS

PIPS

PS

PS

PS

3.5

No PS

PIPS

PIPS

PS

PS

PS

3

No PS

No PS

PIPS

PIPS

PS

PS

2.5

No PS

No PS

PIPS

PS

PS

2

No PS

PIPS

PIPS

PS

PS

1

No PS

No PS

No PS

PIPS

 

1

2

2.5

3

3.5

4

5

DS [%]

  1. Mixtures far beyond the PIPS region were excluded from further screening.
  2. Evaluation based on the observable behaviors shown in Fig. 2d: no phase separation (No PS), photopolymerization-induced phase separation (PIPS), and phase separation before polymerization (PS)