𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Swelling behavior of thermosensitive N-isopropylacrylamide–ethyl N-acryloylglycine submicron-sized copolymer gel particles

✍ Scribed by Hyun Seok Choi; Jong Min Kim; Kee-Jung Lee; Young Chan Bae

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
177 KB
Volume
69
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis

Submicron-sized N-isopropylacrylamide (NIPA) -ethyl N-acryloylglycine (ENAG) copolymer gel particles with various compositions were prepared by precipitation polymerization in water. Their swelling behaviors were determined by photon correlation spectroscopy (PCS). Our results showed that the volume transition temperature of copolymer gel particles decreased with increasing the mole ratio of ENAG. In model development, we modified the extended Flory-Huggins theory as a free energy of mixing term and employed the modified Flory-Rehner theory for the elastic contribution and compared the proposed model with our swelling data. The model predicted fairly well the swelling behaviors of copolymer gel particles.

📜 SIMILAR VOLUMES

Reentrant swelling behavior of thermosen
Reentrant swelling behavior of thermosensitive N-isopropylacrylamide nano-sized gel particles
✍ Sang Chul Jung; Suk Yung Oh; Young Chan Bae 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 475 KB

The closed-loop phase diagram of poly N-isopropylacrylamide (PNIPA) in a water-N,N-dimethylformamide (DMF) system was measured by thermooptical analysis (TOA). The reentrant swelling behavior of N-isopropylacrylamide (NIPA) nano-sized gel particles in the water-DMF system was measured by using photo

Swelling behavior of thermosensitive pol
Swelling behavior of thermosensitive polyvinyl alcohol-graft-N-isopropylacrylamide copolymer membranes containing carboxyl groups and properties of their polymer solutions
✍ Takamasa Nonaka; Toshihiro Yoda; Seiji Kurihara 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 224 KB 👁 2 views

The thermosensitive polyvinyl alcohol-graft-N-isopropylacrylamidemethacrylic acid (PVA-g-NIPAAm-MAc) terpolymer membranes containing carboxyl groups were prepared. The swelling ratios of the membranes were measured at various temperatures. The temperature dependence of the swelling ratios of the ter