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Citation: FENG Zong-Cai, LI Lin. Synthesis and Photocuring Performance of Hyperbranched Base-soluble Photo-sensitive Polymers Containing Photo Sensitizer 184 Unit[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 670-674. shu

Synthesis and Photocuring Performance of Hyperbranched Base-soluble Photo-sensitive Polymers Containing Photo Sensitizer 184 Unit

FENG Zong-Cai ^a,, ,
LI Lin ^b

1.
a Chemistry Department, Zhanjiang Normal College, Zhanjiang 524048;
2.
b Research Institute of Light Chemical Engineering, South China University of Technology, Guangzhou

Corresponding author: FENG Zong-Cai,
Received Date: 28 June 2006
Available Online: 25 November 2006
Fund Project: 广东省自然科学基金资助项目(5011734) (5011734)广东省教育厅自然科学研究资助项目(Z03063) (Z03063)湛江市科技攻关资助项目(湛财企[2004]98号-7) (湛财企[2004]98号-7)

Hyperbranched polyesters were synthesized by reacting the centronuclei of pentaerythritol with 1,2,4-benzenetricarboxylic anhydride and epichlorohydrin.Then the base-soluble photo-sensitive polymers containing photo-sensitizer units were prepared by further reaction of the above synthesized polymers with 1-hydroxy cyclohexyl-phenyl-ketone and glycidyl methacrylate.Under the optimum conditions,the monomer conversion could reach over 80% during 1 h of reaction.The glass transition temperature of the product was 200℃.TGA showed no mass loss at below 200℃ for the polymer,and a small mass loss was observed between 200℃ and 300℃.It viscosity performance was characteristic of hyperbranched polymers.Additionally,they show excellent solubilities in aqueous alkali.They could be photocured by UV irradiation without additional photoinitiators.Moreover,these resins have such merits as little exposing energy (E₀=1×10^-3~1×10^-2 J/cm²) and satisfactory photo sensitivity.
- hyperbranched polymer,
- synthesis,
- photocuring
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