Supramolecular poly(ether ketone)-polyisobutylene pseudo-block copolymers

被引:63
作者
Binder, WH
Kunz, MJ
Ingolic, E
机构
[1] Vienna Tech Univ, Inst Appl Synthet Chem, Div Macromol Chem, A-1060 Vienna, Austria
[2] FELMI Graz, Res Inst Electron Microscopy, A-8010 Graz, Austria
关键词
supramolecular structures; telechelic poly(ether ketones); telechelic polyisobutylenes; block copolymers; phase separation;
D O I
10.1002/pola.10979
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The association behavior of telechelic hydrogen-bonded poly(ether ketone) (PEK) and polyisobutylene (PIB) polymers and the formation of a new class of pseudo-block copolymers is reported. The attachment of complementing hydrogen bonds (thymine/2,6-diaminotriazine and cytosine/2,6-diaminotriazine) onto the respective PIB and PEK polymers leads to a dramatic increase in the miscibility between the normally immiscible PEK and PIB polymers. The structure formation in the liquid state was studied by dynamic NMR spectroscopy as well as in the solid state via solid-state NMR-spectroscopy, DSC, and TEM methods. The polymers form a nanophase structure with a periodicity of 70 mm with the microphase separation occurring specifically within the donor-acceptor pair with the higher binding constant (thymine/2,6-diaminotriazine) and not within the weaker bonded cytosine/2,6-diaminotriazine pair. (C) 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 162-172, 2004.
引用
收藏
页码:162 / 172
页数:11
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