Abstract
Poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) was prepared by ring opening metathesis polymerization. This was achieved in chloroform using the Grubbs 1st generation initiator and quenched with ethyl vinyl ether. The polymer had a weight average molecular weight of 27,000 g/mol with a polydispersity index of 2.19, a high glass transition temperature of 281 °C and a high thermal decomposition temperature of 385 °C (10% loss). The trans:cis vinylene ratio was 1.00:0.19 making the polymer amorphous. The polymer was used as a host for 5 guest nonlinear optical chromophores. The relationship between the chromophore structure and the electro-optic coefficient was investigated. A range of chromophore concentrations were evaluated and it was found that the ideal chromophore structure included a bulky tert-butyldiphenylsilane side group. A maximum r33 of 80 pm/V was obtained at a chromophore concentration of 45 wt% and a poling temperature of 160 °C. A host-guest system containing 35 wt% of the tert-butyldiphenylsilane substituted chromophore had a stability of 85% at a temperature of 85 °C for 500 h. The stability at 105 °C was 72%. In comparison amorphous polycarbonate under the same conditions achieved a stability of just 58% at 85 °C, while poly(methyl methacrylate) had a stability of 0% at 85 °C.
| Original language | English |
|---|---|
| Pages (from-to) | 89-99 |
| Number of pages | 11 |
| Journal | European Polymer Journal |
| Volume | 84 |
| DOIs | |
| Publication status | Published - Nov 1 2016 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Polymers and Plastics
- Organic Chemistry
Cite this
High stability poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) and phenyl vinylene thiophene electro-optic host-guest system. / Spring, Andrew M.; Qiu, Feng; Yokoyama, Shiyoshi.
In: European Polymer Journal, Vol. 84, 01.11.2016, p. 89-99.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High stability poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) and phenyl vinylene thiophene electro-optic host-guest system
AU - Spring, Andrew M.
AU - Qiu, Feng
AU - Yokoyama, Shiyoshi
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) was prepared by ring opening metathesis polymerization. This was achieved in chloroform using the Grubbs 1st generation initiator and quenched with ethyl vinyl ether. The polymer had a weight average molecular weight of 27,000 g/mol with a polydispersity index of 2.19, a high glass transition temperature of 281 °C and a high thermal decomposition temperature of 385 °C (10% loss). The trans:cis vinylene ratio was 1.00:0.19 making the polymer amorphous. The polymer was used as a host for 5 guest nonlinear optical chromophores. The relationship between the chromophore structure and the electro-optic coefficient was investigated. A range of chromophore concentrations were evaluated and it was found that the ideal chromophore structure included a bulky tert-butyldiphenylsilane side group. A maximum r33 of 80 pm/V was obtained at a chromophore concentration of 45 wt% and a poling temperature of 160 °C. A host-guest system containing 35 wt% of the tert-butyldiphenylsilane substituted chromophore had a stability of 85% at a temperature of 85 °C for 500 h. The stability at 105 °C was 72%. In comparison amorphous polycarbonate under the same conditions achieved a stability of just 58% at 85 °C, while poly(methyl methacrylate) had a stability of 0% at 85 °C.
AB - Poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) was prepared by ring opening metathesis polymerization. This was achieved in chloroform using the Grubbs 1st generation initiator and quenched with ethyl vinyl ether. The polymer had a weight average molecular weight of 27,000 g/mol with a polydispersity index of 2.19, a high glass transition temperature of 281 °C and a high thermal decomposition temperature of 385 °C (10% loss). The trans:cis vinylene ratio was 1.00:0.19 making the polymer amorphous. The polymer was used as a host for 5 guest nonlinear optical chromophores. The relationship between the chromophore structure and the electro-optic coefficient was investigated. A range of chromophore concentrations were evaluated and it was found that the ideal chromophore structure included a bulky tert-butyldiphenylsilane side group. A maximum r33 of 80 pm/V was obtained at a chromophore concentration of 45 wt% and a poling temperature of 160 °C. A host-guest system containing 35 wt% of the tert-butyldiphenylsilane substituted chromophore had a stability of 85% at a temperature of 85 °C for 500 h. The stability at 105 °C was 72%. In comparison amorphous polycarbonate under the same conditions achieved a stability of just 58% at 85 °C, while poly(methyl methacrylate) had a stability of 0% at 85 °C.
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U2 - 10.1016/j.eurpolymj.2016.09.012
DO - 10.1016/j.eurpolymj.2016.09.012
M3 - Article
AN - SCOPUS:84987984848
VL - 84
SP - 89
EP - 99
JO - European Polymer Journal
JF - European Polymer Journal
SN - 0014-3057
ER -