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| Thesis Name： |
Synthesis of side-chain polyamic acid under microw |
| Usage： |
Synthesis of side-chain polyamic acid under microw |
| Keyword： |
123 |
| Remarks： |
P-p conjugated polyamic acid(PAA) was synthesized by the polycondensation of benzoguanamine (BGA) and pyromellitic dianhydride (PMDA) under microwave irradiation. Then PAA was grafted by lower molecular weight ploy(2-Hydroxyethyl Acrylate)(PHEA) to the main chain. The effect of the amount of catalyst, the molar ratios of PAA and PHEA structural units and the molecular weight of PHEA on the intrinsic viscosity and the graft degree were investigated. Thin films of the graft polymers were obtained by spinning-coat method. The film quality was improved obviously by graft modification. The third-order nonlinear optical (NLO) responses were probed by degenerated four wave mixing(DFWM) technique. The results show that the third-order NLO coefficient of the polymer films is larger than that of the polymer solutions. |
| Original file： |
No File
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Promulgator Detail |
| Full name: |
hichem |
| Country: |
CN |
| City: |
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| Company Name: |
hichem |
| Homepage: |
http://www.teloon.com |
| E-mail: |
reply |
| Phone: |
86-411-82819585 |
| Fax: |
86-411-82819612 |
| Company Address: |
Renming Road, Dalian city, Lianning pro,china |
| Zip/Postal Code: |
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| Introduction: |
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