High Performance Polymers, 2nd Edition

9: TRIAZOLE POLYMERS 225

Figure 9.7 π-Conjugated crown ether poly-

mers [34].

O

O

O

O

O

N

N

N

O

O

O

O

O

N

N

N

N

N

shows a moderate sensitivity to thermal and mechan-

ical stimuli, as it explosively decomposes beyond

250

◦

C[20].

9.2.7 Sonochemical Synthesis of

Nanoparticles

Nanoparticles of a two-dimensional coordination

polymer, containing lead complexed with 1H-1,2,4-

triazole-3-carboxylate, have been synthesized by a

sonochemical process [29].

The calcination at 400

◦

C under air atmosphere

yields a mixture of PbS and Pb

2

(SO

4

)O nanoparti-

cles. The size and morphology of these nanoparticles

are dependent on the particle size of the original

compound. At 600

◦

C, PbO nanostructures ...