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Synthesis and characterization of substituted polynorbornene derivatives

Title data

Mulpuri, Syamkumar V. ; Shin, Jinbok ; Shin, Boo-Gyo ; Greiner, Andreas ; Yoon, Do Y.:
Synthesis and characterization of substituted polynorbornene derivatives.
In: Polymer. Vol. 52 (1 September 2011) Issue 19 . - pp. 4377-4386.
ISSN 0032-3861
DOI: https://doi.org/10.1016/j.polymer.2011.07.019

Official URL: Volltext

Project information

Project financing: Brain Korea 21 Project Samsung Electro-Mechanics Inc.

Abstract in another language

This paper describes palladium (II) catalyst based synthesis and detailed characterization of vinyl-type polynorbornenes (PNBs) with bulky phenyl, adamantane, or norbornane substituents linked by ester, ether, or alkyl bridges. The structure-property relationships of the substituted PNBs were investigated concerning the thermal stability, glass transition temperature, wide-angle X-ray scattering (WAXS) patterns, mechanical properties, and dielectric characteristics. PNBs with phenyl substituted pendant groups improved the solubility and film forming properties due to aromatic aromatic interactions. The substituted PNBs exhibited good thermal and thermo-mechanical properties with thermal decomposition temperature (T(d,5%)) above 300 degrees C and glass transition temperature in the range of 134-325 degrees C. WAXS studies revealed the presence of local nano-scale order in the noncrystalline state, especially in ester bridged adamantane and norbornane substituted polymers, probably due to the steric packing requirements of bulky side groups coupled with dipolar interactions. Nanoindentation results showed high modulus (6.5-7.9 GPa) and hardness (0.11-0.38 GPa) for PNBs with diester adamantane and norbornane substituted polymers. Excellent dielectric properties with a dielectric constant (e.) of 2.5 and a dielectric loss tangent (tan delta) of 0.0005 were measured for poly [2-(4-phenylbutyl)-5-norbornene] at 1 GHz, rendering it very attractive for interconnect dielectric films in high-frequency electronic devices. (C) 2011 Elsevier Ltd. All rights reserved.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Vinyl polymerization; Polynorbornene derivatives; Interconnect dielectric polymer
Institutions of the University: 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
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: 01 Apr 2015 06:14
Last Modified: 01 Apr 2015 06:14
URI: https://eref.uni-bayreuth.de/id/eprint/9536