β Scribed by Gyung Don Kang; Jeong-Yun Heo; Sung Bum Jung; Soo-Chang Song
No coin nor oath required. For personal study only.
Summary: After synthesizing both hard poly(organophosphazenes), which acted as strong hydrogels at a temperature below 37βΒ°C, and soft poly(organophosphazenes), which displayed the opposite properties, we blended the polymers. When these polymers were blended at an appropriate ratio, the blended aqueous solution changed into a transparent hydrogel with improved mechanical properties at a temperature of 37βΒ°C. According to DSC and IR measurements, the two polymers blended homogeneously and exhibited a behavior characteristic of a completely different copolymer.
An aqueous poly(organophosphazene) solution at room temperature (left) is reversibly and rapidly transformed into a transparent hydrogel at body temperature (right) when a hard poly(organophosphazene) is blended with a soft one at an appropriate ratio.
imageAn aqueous poly(organophosphazene) solution at room temperature (left) is reversibly and rapidly transformed into a transparent hydrogel at body temperature (right) when a hard poly(organophosphazene) is blended with a soft one at an appropriate ratio.
π SIMILAR VOLUMES
## Abstract **Summary:** Hydrophobically modified poly(__N__βisopropylacrylamide) (PNIPAM) containing either an adamantyl or a dodecyl group were prepared and characterized. Selfβassociation in aqueous solutions was evidenced by fluorescence measurements using pyrene as a probe. The lower critical