Photopolymerization of Pluronic F127 diacrylate: a colloid-templated polymerization

被引：35

作者：

Di Biase, Manuela ^{[1
,2
]}

de Leonardis, Piero ^{[2
]}

Castelletto, Valeria ^{[3
]}

Hamley, Ian W. ^{[3
]}

Derby, Brian ^{[1
]}

Tirelli, Nicola ^{[1
,4
]}

机构：

[1] Univ Manchester, Sch Mat, Manchester M1 7HS, Lancs, England

[2] Univ Manchester, Sch Pharm, Manchester M13 9PL, Lancs, England

[3] Univ Reading, Sch Chem, Reading RG6 6AD, Berks, England

[4] Univ Manchester, Sch Biomed, Manchester M13 9PL, Lancs, England

来源：

SOFT MATTER | 2011年 / 7卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

TEMPERATURE-DEPENDENT MICELLIZATION; BLOCK-COPOLYMER SOLUTIONS; AQUEOUS-SOLUTION; HYDROGEL NANOPARTICLES; DIBLOCK COPOLYMER; DRUG-RELEASE; CRYO-TEM; GELATION; MICELLES; DELIVERY;

D O I：

10.1039/c1sm05095h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pluronic F127 diacrylate (F127DA) is a bifunctional acrylate and as such it should in principle produce macroscopically cross-linked materials; however, its photopolymerization in water does not lead to 3D-extended hydrogels. The main species present after photopolymerization appear to be cross-linked micelles, which indicates that the micellar morphology of F127DA has a template effect on the polymerization. The structural analogy causes the physical state of precursor and polymerized materials to be very similar for a wide range of concentrations (5-25% wt) and temperatures (10-37 degrees C). Also the long-range morphology of F127DA appears to have a template effect: samples photopolymerized in a micellar gel state and redispersed at high concentration (25% wt) show a long-range organization that depended on the concentration and therefore on the order of the precursor.

引用

页码：4928 / 4937

页数：10

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