Novel Polymeric Thin Films from Labile Lactic Acid by a Dry Process

作者：Chang, Yi-Hsin; Chang, Chun-Chih; Chen, Ying-Chu; Yang, Arnold C. -M.^*; Liu, Yin-Chang; Cheng, Cheng-Kung

来源：Plasma Processes and Polymers, 2009, 6(1): 45-57.

DOI：10.1002/ppap.200800095

• biocompatible polymers
• greenhouse gas conversion
• L-lactic acid
• plasma polymerization
• poly(L-lactic acid)
• ultra-thin films

Novel biocompatible polymer films were derived from LLA with molecularly smooth surfaces by using a plasma deposition method significantly enhanced with higher monomer vapor densities. It was found that hydrocarbons (and chain crosslinks) increased relative to the oxygen-containing moieties as plasma power or time increased, following a reaction scenario dominated by energy-mediated molecular scission pathways, With the hydroxyl groups being retained, the films of excellent strength were highly hydrophilic and manifested excellent biocompatibility applicable for a wide range of biomedical coats. This work also demonstrated the feasibility of converting common molecules to useful polymers under appropriate plasma conditions.

• 出版日期2009-1-10
• 单位清华大学