Citation: Yuan YUAN, Chang Sheng LIU, Yuan ZHANG, Min YIN, Jie XU. Effect of Oxygen on Surface Properties and Drug Release Behavior of Plasma Polymer of n-Butyl Methacrylate[J]. Chinese Chemical Letters, ;2005, 16(12): 1641-1644. shu

Effect of Oxygen on Surface Properties and Drug Release Behavior of Plasma Polymer of n-Butyl Methacrylate

Yuan YUAN ^1, ,
Chang Sheng LIU ¹ ,
Yuan ZHANG ¹ ,
Min YIN ¹ ,
Jie XU ²

1.
Engineering Research Center for Biomedical Materials of Ministry of Education, ECUST;
2.
Center of Analysis and Research, ECUST, Shanghai 200237

Received Date: 3 March 2005

The effects of oxygen on the chemical structure, morphology, hydrophilicity and drug release behavior of radio-frequency plasma poly n-butyl methacrylate (PPBMA) thin film were carried out for the first time. ATR-FTIR and XPS showed that oxygen had little influence on the chemical structure and composition of PPBMAs, which did not agree with the thought that the presence of oxygen gas would increase the oxidized carbon functionalities in the plasma polymer.SEM and static contact angle measurement indicated that in case of deposition with oxygen, the smoothness and hydrophilicity of PPBMA were dramatically improved. The drug release behavior showed that drug release from the PPBMA coating without oxygen was biphasic patterns,while from PPBMA coating with oxygen was Higuchi release. These results were helpful for the design and tailoring of the PPBMA polymer film and other of plasma polymers film, but could provide a new idea for the drug release controlled form.
- Plasma n-butyl methacrylate polymer,
- oxygen,
- chemical structure,
- morphology,
- hydrophilicity
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