Fig. 6
From: Bonding dissimilar polymer networks in various manufacturing processes
Oxygen-tolerant hydrogel resin that bonds with silane-modified elastomer resin. a Stress relaxation tests show that as the average chain length decreases by adding chain transfer agent, the stress relaxation becomes faster. b After 12 h at 65 °C, the polymers are crosslinked into a network by the condensation of silanol groups. Consequently, the sample can hold stress without relaxing. c Oxygen-tolerant resin allows uncured PAAm resin and uncured PDMS resin to be layered, cured together, and form robust bonding
