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| EVAC树脂的醇解制备及研究 | |
| 引用本文： | 孙瑞朋,金铁玲,林明涛,陈日清,储富祥,王春鹏.EVAC树脂的醇解制备及研究[J].工程塑料应用,2012,40(2):22-24. |
| 作者姓名： | 孙瑞朋 金铁玲 林明涛 陈日清 储富祥 王春鹏 |
| 作者单位： | 1. 中国林业科学研究院林产化学工业研究所,林产化学工程重点开放性实验室,南京210042 2. 中国林业科学研究院林业新技术实验室,北京,100091 3. 中国林业科学研究院林产化学工业研究所,林产化学工程重点开放性实验室,南京210042;中国林业科学研究院林业新技术实验室,北京 100091 |
| 基金项目： | 国家863计划资助(2007AA100704);林业行业专项(201104004);浙江省省院合作项目(2009SY01) |
| 摘 要： | 以碱为催化剂,乙烯-乙酸乙烯酯共聚物(EVAC)共聚物为原料,在一定温度下,通过醇解反应制备出乙烯-乙烯醇共聚物(EVOH),并利用红外、核磁、差示扫描量热仪和熔体速率测定仪对EVOH树脂分子结构和其物理化学性能进行了研究。结果表明,EVAC和EVOH的分子结构发生了明显的变化;随着醇解反应时间的增加,EVOH树脂的玻璃化转变温度(Tg),结晶温度(Tc)和熔点(Tm)逐渐升高;随着乙烯浓度的增加,EVOH树脂的Tg,Tc和Tm逐渐降低,但是EVOH树脂的熔体流动速率逐渐升高。 |
| 关 键 词： | 浓度 NaOH–甲醇溶液 乙烯–乙烯醇共聚物 |
Synthesis and Research of Ethylene-Vinyl Alcohol Copolymer |
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| Sun Ruipeng , Jin Tieling , Lin Mingtao , Chen Riqing , Chu Fuxiang , Wang Chunpeng.Synthesis and Research of Ethylene-Vinyl Alcohol Copolymer[J].Engineering Plastics Application,2012,40(2):22-24. | |
| Authors: | Sun Ruipeng Jin Tieling Lin Mingtao Chen Riqing Chu Fuxiang Wang Chunpeng |
| Affiliation: | 1,2(1.Institute of Chemical Industry of Forest Products,CAF;Key and Open Lab.on Forest Chemical Engineering,Nanjing 210042,China; 2.New Technology Laboratory of Forestry,Chinese Academy of Forestry,Beijing 100091,China) |
| Abstract: | With alkali as catalyst and ethylene-vinyl acetate(EVAC) as raw material,the ethylene-vinyl alcohol copolymer(EVOH) resin was prepared by alcoholysis under certain temperature.The FT-IR,1H-NMR,DSC and MFR were applied to analyze the molecular structure,physical and chemical properties of the resin.The FT-IR and 1H-NMR results showed that the the molecular structure of EVOH was different from that of EVAC.The Tg,Tc and Tm increased gradually with the increase of the alcoholysis reaction time;the Tg,Tc and Tm decreased with the increase of the ethylene molar content of the EVAC resin,but the MFR of the EVOH resin increased. |
| Keywords: | molar percentage NaOH–methanol solution ethylene-vinyl alcohol |
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