Polymers with multiple hydrogen-bonded end groups and their blends

被引：193

作者：

Feldman, Kathleen E. ^{[1
,2
,3
]}

Kade, Matthew J. ^{[1
,2
,3
]}

de Greef, Tom F. A. ^{[4
]}

Meijer, E. W. ^{[4
]}

Kramer, Edward J. ^{[1
,2
,3
]}

Hawker, Craig J. ^{[1
,2
,3
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem, Mat Res Lab, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Biochem, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[4] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands

来源：

MACROMOLECULES | 2008年 / 41卷 / 13期

关键词：

D O I：

10.1021/ma800375r

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

A new strategy for synthesizing well-defined, chain-end-functionalized polymers containing multiple hydrogen-bonding (MHB) groups capable of heterodimerization in both solution and the melt has been developed. Two complementary MHB systems were chosen for initial studies: 2-ureido-4[1H]-pyrimidinone(UPy) and 2,7diamido- 1,8-naphthyridine (Napy) and ATRP initiators containing either UPy or Napy were prepared and shown to produce well-defined (meth)acrylic polymers with the desired MHB functionality present at the chain end. To characterize the effectiveness of the MHB interaction in the melt, blends of chain-end-functionalized linear polymers were cast into films, annealed at various temperatures above T-g, and then quenched, and their structures were analyzed by transmission electron micro scopy (TEM) and differential scanning calorimetry (DSC). It was shown that the nature of the hydrogen-bonding group(s) present in the blend has a significant effect on bulk microstructure and thermal behavior, in particular for blends of UPy- and Napy-functional chains.

引用

页码：4694 / 4700

页数：7

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