| 电子束辐照聚乳酸-聚乙二醇共聚物的结构及热性能研究 |
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| 引用本文： | 缪培凯,武迪蒙,徐国亮,赵春娥,曾科,杨刚. 电子束辐照聚乳酸-聚乙二醇共聚物的结构及热性能研究[J]. 信息记录材料, 2010, 11(4): 16-20 |
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| 作者姓名： | 缪培凯 武迪蒙 徐国亮 赵春娥 曾科 杨刚 |
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| 作者单位： | 1. 四川大学,高分子科学与工程学院,高分子材料工程国家重点实验室,高分子学院-NHVC电子线应用研究中心,成都,610065;湖南松井化学技术有限公司,长沙,410125
2. 四川大学,高分子科学与工程学院,高分子材料工程国家重点实验室,高分子学院-NHVC电子线应用研究中心,成都,610065 |
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| 基金项目： | 日本NHV Corporation资助项目 |
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| 摘 要： | 本文首先通过直接熔融缩聚法制备了聚乳酸-聚乙二醇共聚物(PLEG),并采用FTIR和1 H NMR对其结构进行表征。然后在辐射剂量0～100kGy范围下,利用衰减全反射红外(ATR-FTIR)、差示扫描量热(DSC)和热失重分析(TGA)研究了电子束辐照对PLEG结构及热性能的影响。结果表明:加入3%的三聚氰酸三烯丙酯(敏化剂TAC)后,由于交联结构的形成,PLEG的凝胶率、玻璃化转变温度(Tg)和热稳定性均随辐射剂量的增加而有所提高,且其热转变行为也发生变化。
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| 关 键 词： | 聚乳酸-聚乙二醇共聚物 电子束辐射 敏化剂 交联 热性能 |
Influence of Electron Beam Radiation on the Structure and Thermal Properties of Poly (D,L-lactic acid)-co-poly(ethylene glycol)Copolymer |
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| MIAO Pei-kai,WU Di-meng,XU Guo-liang,ZHAO Chun-e,ZENG Ke,YANG Gang. Influence of Electron Beam Radiation on the Structure and Thermal Properties of Poly (D,L-lactic acid)-co-poly(ethylene glycol)Copolymer[J]. Information Recording Materials, 2010, 11(4): 16-20 |
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| Authors: | MIAO Pei-kai WU Di-meng XU Guo-liang ZHAO Chun-e ZENG Ke YANG Gang |
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| Affiliation: | MIAO Pei-kai1,2,WU Di-meng1,XU Guo-liang1,ZHAO Chun-e1,ZENG Ke1,YANG Gang1 (1.College of Polymer Science & Engineering,State Key Laboratory of Polymeric Materials Engineering,Application and Research Center for Electron Beam of College of Polymer-NHVC,Sichuan University,Chengdu 610065,China,2.Hunan Sokan Chemical Technology Co.,Ltd.,Changsha 410125,China) |
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| Abstract: | Poly(D,L-lactic acid)-co-poly(ethylene glycol) copolymer(PLEG) was synthesized by direct melt polycondensation,and its structure was characterized by FTIR and 1H NMR.Then in the irradiation dose range of 0～100 kGy,the effect of electron beam(EB) radiation on the structure and thermal properties of PLEG was studied by fourier transform attenuated total reflection infrared spectroscopy(ATR-FTIR),differential scanning calorimetry(DSC) and thermogravimetric analysis(TGA).It was found that,compared with PLEG,the gel fraction,Tg,and thermal stability of PLEG mixed with 3 % triallylcyanurate(TAC) increased with increasing dose and its thermal transition behaviour also changed because of the formation of crosslinking structure. |
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| Keywords: | PLEG electron beam radiation polyfunctional monomer crossliking thermal properties |
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