Self-assembly of graft polyurethanes having both crystallizable poly(ε-caprolactone) blocks and soft poly(n-butyl acrylate) segments

被引：10
作者：
Ibarboure, E. [1 ]
Baron, A. [1 ]
Papon, E. [1 ]
Rodriguez-Hernandez, J. [1 ]
机构：
[1] Univ Bordeaux 1, CNRS, LCPO, F-33607 Pessac, France
来源：
THIN SOLID FILMS | 2009年 / 517卷 / 11期
关键词：
Graft polyurethanes; Atomic force microscopy; Lamellar structure; Morphology; Self-assembly; Crystallizable; ALT-GLYCOLIC ACID); MULTIFUNCTIONAL INITIATOR; DIBLOCK; COPOLYMERS; MORPHOLOGY; NUCLEATION; BEHAVIOR; SURFACE;
D O I：
10.1016/j.tsf.2008.12.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the self-assembly behavior of graft polyurethanes combining in its structure soft lateral poly(n-butyl acrylate) (PnBuA) chains with rigid and crystallizable polycaprolactone (PCL) segments. Segmented polyurethanes microphase separated into high-glass transition temperature PCL hard and low-glass transition temperature PnBuA soft domains. The variation of the microstructure as a function of the hard segment content (ratio hard to soft segments) within the structure has been studied by using atomic force microscopy. Additionally, the crystallization mechanism appeared to be directly related to the properties of the substrates forming parallel lamellar structures on hydrophilic substrates and perpendicular lamellae with hydrophobic substrates. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3281 / 3286
页数：6
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