Temperature-sensitive nanogels: poly(N-vinylcaprolactam) versus poly(N-isopropylacrylamide)

被引:255
作者
Ramos, Jose [2 ]
Imaz, Ainara [1 ]
Forcada, Jacqueline [1 ]
机构
[1] Univ Pais Vasco EHU, Dept Quim Aplicada, Fac Ciencias Quim, Grp Ingn Quim, Donostia San Sebastian 20080, Spain
[2] Univ Granada, Fac Ciencias, Dept Fis Aplicada, Grp Fis Fluidos & Biocoloides, E-18071 Granada, Spain
关键词
VINYLCAPROLACTAM-BASED MICROGELS; VOLUME PHASE-TRANSITION; N-ISOPROPYLACRYLAMIDE; THERMOSENSITIVE POLYMERS; BIOMEDICAL APPLICATIONS; COPOLYMER MICROGELS; ACRYLATE) MICROGELS; LATEX FORMATION; PARTICLES; PH;
D O I
10.1039/c2py00485b
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly(N-isopropylacrylamide) (PNIPAM) and poly(N-vinylcaprolactam) (PVCL) are temperature-responsive polymers which show a lower critical solution temperature (LCST) around 32 degrees C in aqueous solutions. Nanogels based on these temperature sensitive polymers swell at low temperatures and collapse at high ones, showing a volume phase transition temperature (VPTT) near physiological temperature. This unique behavior makes these nanogels attractive for biotechnological applications. PNIPAM is the building block of a huge amount of nanogels reported in the literature. However, PVCL is especially interesting due to the fact that it is very stable against hydrolysis and biocompatible. In this mini-review, various synthesis procedures together with the functionalization of different PNIPAM-and PVCL-based nanogels are revised and compared.
引用
收藏
页码:852 / 856
页数:5
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