Sopitcha Phetrong. Facile synthesis of N-vinylcaprolactam-functionalized natural rubber with temperature responsiveness. Master's Degree(Chemistry). Thammasat University. Thammasat University Library. : Thammasat University, 2016.
Facile synthesis of N-vinylcaprolactam-functionalized natural rubber with temperature responsiveness
Abstract:
Natural rubber (NR) has drawn much attention to be used in a broad range of applications, due to its superior properties such as high flexibility and tear resistance. However, NR industries in Thailand have confronted with a considerable drop in prices of NR. Hence, introducing new properties to the NR is a remarkable way for rectifying the problem, adding the value, and also widening its applications. Herein, novel temperature-responsive materials had been successfully prepared by functionalizing NR with N-vinylcaprolactam (NVCL) and its polymer through two processes including crosslinking and graft copolymerization. The synthetic NVCL-functionalized NRs displayed a lower critical solution temperature (LCST) around 32-34 °C which close to the human physiological temperature. With this behavior, our materials were used to mimic controlled drug medical device via dye adsorption and desorption studies. This result showed that these materials were able to release dye at the temperature exceeded 32 °C. Therefore, the materials developed in this research work will be useful in a variety of biomedical applications that can extend the range of applications of NR
Thammasat University. Thammasat University Library