| In this paper, the development and content of experiment of the click polymerization and the multicomponent polymerization were introduced. The main experimental contents were divided into the following parts:1. 9,9- bis(4- hydroxyphenyl) xanthene(BHPX)was synthesized with xan t-hone two steps in one-pot. 9,9-bis(4-(6-azidohexyloxy)phenyl)-9H-xanthene(B A-HPHX) was prepared by two steps, at first 9,9- bis(4- hydroxyphenyl) xanth ene(BHPX)and 1,6-dibromohexane occurred substitution reaction under alkalin e c-onditions to obtain 9,9-bis(4-(6-bromohexyloxy)phenyl)-9H-xanthene(BBHPX),the-n BAHPHX was synthesized from the reaction of 9,9-bis(4-(6-bromohexylox y)phenyl)-9H-xanthene(BBHPX) and sodium in the presence of DMSO. Finally,9,9-bis(4-(6-azidohexyloxy)phenyl)-9H-xanthene(BAHPX) monomer with the to t-al yield of 53%.Various ether alkynes were synthesized by the reaction of related aromatic phenols with 3-bromoprop-1-yne in alkaline conditions. The yield was about 70%.A series of polytriazoles Pa-e were obtained by the click polymerization of9,9-bis(4-(6-azidohexyloxy)phenyl)-9H-xanthene(BAHPX) monomer with various ether alkynes with THF as the solvent and Cu(PPh3)3Br as catalyst at 60°C. The weight average molecular weight(Mw) of the polytriazoles were between 22442 and50884 which were measured by GPC, and they all could form good films. The all polytriazoles were dissolved in dipolar organic solvents, such as NMP, DMAc and also dissolved in aprotic polar solvent such as pyridine and THF. So it could be processed easily. The all polytriazoles films showed good opptical properties and mechanical properties with the transmittance of 68.41%-82.08% at 500 nm, of72.25%-84.24% at 600 nm, of 74.32%-84.80% at 700 nm, of 76.14%-85.37% at800 nm and the cutoff wavelength of 301-372, tensile strengths of 55.53-81,31 MPa,tensile moduli of 1.17–1.99 GPa, and elongations at break of 5.75%-6.94%. The decomposition temperature at 10% weight loss was up to 400°C. All the polytriazoles were amorphous.2.4-(4-trifluoromethyl)phenyl)-2,6--bis(4-phenol phyenyl)pyridine(TPB-HP)was successfully synthesized by the Chichibabin reaction of 4-(trifluoromethyl)benzaldehyde 4-acetylbenzaldehyde acetic acid and ammonium acetate. Then the way of preparation of 2,6-bis(4-(6-azidohexyloxy)phenyl)-4-(4-(trifluoromethyl)phenyl)pyridine(BAHPTPP) was similar to the preparation of BAHPX.Finally, BAHPTPP monomer with the total yield of 42%.A series of polytriazoles Pi-v were obtained by the click polymerization of2,6-bis(4-(6-azidohexyloxy)phenyl)-4-(4-(trifluoromethyl)phenyl)pyridine(BAHPT PP) monomer with various ether alkynes with THF as the solvent and Cu-(PP h3)3Br as catalyst at 60°C. The weight average molecular weight(Mw) of the polytriazoles were between 14568 and 30045 which were measured by GP-C, a nd they all could form good films. The all polytriazoles were dissolved in dip olar organic solvents, such as NMP, DMAc and also dissolved in aprotic pol-ar solvent such as pyridine and THF. So it can be processed easily. The all p-oly triazole films showed good opptical properties with the transmittance of 70.49%-80.01% at 500 nm, of 76.39%-84.23% at 600 nm, of 78.13%-85.76% at 700 nm, of 79.46%-86.71% at 800 nm and the cutoff wavelength of 326-383, The d ecomposition temperature at 10% weight was in the between of 350°C-365°C.All the polytriazoles were amorphous.3.9.9-bis(4-ethynylphenyl)-xanthene(BEPX) was successfully prepared with9,9- bis(4- hydroxyphenyl) xanthene( BHPX) as raw material by three steps of esterification reaction,Sonogashira coupled reaction and substitution reaction.9.9-bis(4-ethynyl-3-methylphenyl)-xanthene(BEMPX) was prepared with 9,9-bis(3-methyl-4- hydroxyphenyl)-xanthene(BMHPX) as raw material.The way was similar to the preparation of 9.9-bis(4-ethynylphenyl)-xanthene(BEPX).P1a and P2 a were obtained by the multicomponent polymerization of aromatic alkyne, aromatic aldehrde and amine with indium chloride as catalyst and o-xylene as solvent at 140°C.The weight average molecular weight(Mw) of polyers were between 14568 and30045 which were measured by GPC, and they all could form good films. The polymer were dissolved in dipolar organic solvents such as NMP, DMAc and also in a less polar solvents such as pyridine and THF. So it can be processed easily.The all films showed good opptical properties and mechanical properties with the transmittance of 83.14%-88.48% at 500 nm, of 86.76%-89.57% at 600 nm, of87.92%-92.00% at 700 nm, of 89.83%-91.03% at 800 nm and the cutoff wavelength of265-278. They all were amorphous. At the same time, the series of polymers alsoshowed good thermal stability, and its 10% weight loss temperature was in ranged of253°C and 409°C,the residual weight were up to 60°C at 800°C. All the polytriazoles were amorphous. |
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