کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1384964 | 982425 | 2012 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Backbone-collapsed intra- and inter-molecular self-assembly of cellulose-based dense graft copolymer Backbone-collapsed intra- and inter-molecular self-assembly of cellulose-based dense graft copolymer](/preview/png/1384964.png)
The self-assembly of cellulose-based amphiphilic dense grafting copolymer ethyl cellulose graft poly(acrylic acid) (EC-g-PAA) in a selective solvent was measured by dynamic light scattering (DLS) and transmission electron microscopy (TEM). Our aim is to realize the intra- or inter-molecular association by collapsing the backbone of dense grafting copolymers. The effects of grafting density, grafting length and solvent on the formation of the unimolecular or multimolecular micelles of EC-g-PAA were discussed. It was shown that the self-association of the grafting copolymers could occur in the mixed solvents of THF and water. The shorter graft chain could induce the multimolecular micelles, while the longer graft chain could lead to the unimolecular micelles. The possible micellization mechanism was proposed from the aspect of chain conformation.
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► Self-assembly behavior of cellulose-based dense graft copolymers.
► Backbone-collapsed intra- and inter-molecular self-assembly.
► Unimolecular micellar structure.
Journal: Carbohydrate Polymers - Volume 88, Issue 1, 17 March 2012, Pages 290–298