Poly(N-(2-hydroxypropyl) methacrylamide mono/di lactate): a new class of biodegradable polymers with tuneable thermosensitivity.
A novel class of thermosensitive and biodegradable polymers, poly(N-(2-hydroxypropyl) methacrylamide mono/di lactate) (poly(HPMAm-mono/di lactate)), was synthesized. The cloud points (CP) of poly(HPMAm-monolactate) and poly(HPMAm-dilactate) in water were 65 and 13 degrees C, respectively. The lower CP for poly(HPMAm-dilactate) is likely due the greater hydrophobicity of the dilactate side group over the monolactate side group. The CP of poly(HPMAm-monolactate-co-HPMAm-dilactate) increased linearly with mol % of HPMA-monolactate, which demonstrates that the CP is tuneable by the copolymer composition.
Soga
Osamu
O
Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Pharmaceutical Sciences, Utrecht University, PO Box 80082, 3508 TB, Utrecht, The Netherlands.
van Nostrum
Cornelus F
CF
Hennink
Wim E
WE
D001673:Biodegradation, Environmental; D007773:Lactates / Q000737:chemistry*; D011109:Polymethacrylic Acids / Q000737:chemistry*; D012542:Scattering, Radiation; D013696:Temperature
D007773:Lactates; D011109:Polymethacrylic Acids; C011533:Duxon