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Synthesis, Structure, and Properties of Alkyl-Substituted PPXs by Chemical Vapor Deposition for Stent Coatings

Title data

Bier, Anna K. ; Bognitzki, Michael ; Mogk, Jochen ; Greiner, Andreas:
Synthesis, Structure, and Properties of Alkyl-Substituted PPXs by Chemical Vapor Deposition for Stent Coatings.
In: Macromolecules. Vol. 45 (14 February 2012) Issue 3 . - pp. 1151-1157.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma202270w

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

High-molecular-weight un-cross-linked poly(p-xylylene) (PPX) derivatives (3) with one lateral linear alkyl substituent (methyl octyl) on each phenylene moiety were prepared by pyrolysis of corresponding paracyclophanes followed by chemical vapor deposition (CVD). Most of these PPX derivatives showed good solubility in organic solvents which allowed purification by reprecipitation, structural analysis by solution NMR techniques, and molecular weight analysis by gel permeation chromatography. High thermal stability of 3 was found by thermogravimetric analysis. The glass transition temperatures decreased systematically with increasing alkyl chain length from 53 to -23 degrees C. Increased elongation to break up to 380% was analyzed by stress-strain experiments for as-deposited films indicating excellent coating properties, which were proven by initial coating tests on stents.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: POLY-P-XYLYLENES; POLY(P-XYLYLENE); DERIVATIVES; ADHESION; BASE
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 31 Mar 2015 10:23
Last Modified: 31 Mar 2015 10:23
URI: https://eref.uni-bayreuth.de/id/eprint/9512