| 高支化聚氨酯的合成及性能研究 |
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| 引用本文： | 张常虎. 高支化聚氨酯的合成及性能研究[J]. 中国胶粘剂, 2012, 0(8): 37-40 |
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| 作者姓名： | 张常虎 |
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| 作者单位： | 西安文理学院化学与化学工程学院 |
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| 基金项目： | 西安文理学院中青年科研基金项目(kyc201014);陕西省分析化学重点学科基金项目 |
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| 摘 要： | 端羧基丁腈橡胶(CTBN)经改性后得到f-CTBN(含端双羟基);然后以f-CTBN和PEG(聚乙二醇)为主要原料,采用逐步聚合法合成了高支化嵌段PU(聚氨酯);最后分别以H12MDI(4,4′-二环己基甲烷二异氰酸酯)或HDI(l,6-己二异氰酸酯)为固化剂,制备相应的浇铸体。研究结果表明:f-CTBN/PEG-1000/HDI基PU材料表面存在许多呼吸型微孔,其强度和模量较高、韧性良好,在生物医学领域,尤其是医用薄膜产品方面具有极大的应用潜力。
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| 关 键 词： | 高支化聚氨酯 端羧基丁腈橡胶 聚乙二醇 呼吸型 医用薄膜 |
Study on synthesis and properties of hyperbranched polyurethane |
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| Zhang Changhu. Study on synthesis and properties of hyperbranched polyurethane[J]. China Adhesives, 2012, 0(8): 37-40 |
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| Authors: | Zhang Changhu |
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| Affiliation: | Zhang Changhu(School of Chemistry and Chemical Engineering,Xi’an University of Arts and Science,Xi’an 710065,China) |
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| Abstract: | With carboxyl-terminated nitrile rubber(CTBN) as modifier,a bishydroxyl-terminated f-CTBN was prepared.Then,with f-CTBN and PEG(polyethylene glycol) as main raw materials,a hyperbranched block PU(polyurethane) was synthesized by stepwise polymerization.Finally,with H12MDI(4,4’-dicyclohexyl methane diisocyanate) or HDI(l,6-hexyl diisocyanate) as curing agent,the corresponding casting was prepared.The research results showed that there are many breathing micropores on PU’s surface based on f-CTBN/PEG-1000/HDI,and the PU had immense application potential in the biomedical field,especially in medical film products because its strength and modulus were higher and toughness was good. |
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| Keywords: | hyperbranched polyurethane carboxyl-terminated nitrile rubber(CTBN) polyethylene glycol breathing medical film |
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