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Radiation polymerization of thermo-sensitive poly (N-vinylcaprolactam) |
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| Authors: | S C Cheng W Feng I I Pashikin L H Yuan H C Deng Y Zhou |
| Institution: | a Faculty of Chemistry, Sichuan University, Chengdu 610064, China b Key Laboratory for Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, Sichuan 610064, China c Sichuan Institute of Nuclear Technology Application, Chengdu 610066, China |
| Abstract: | Temperature-sensitive poly (N-vinylcaprolactam) both in water-soluble state and in gel was prepared by γ-radiation polymerization. The effects of radiation dose, radiation dose rate and monomer concentration on polymerization and the low critical solution temperature characteristics of the polymer were studied. The results show that the polymer prepared within certain radiation dose (beyond 2 kGy) and dose rate range (2–14 Gy/min) has good temperature sensitivity and uniformity. |
| Keywords: | Temperature sensibility Radiation polymerization Poly (N-vinylcaprolactam) Low critical solution temperature (LCST) |
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