CAJ | 학술논문

以己二酸、1,4-丁二醇和尿素为原料,在氩气环境下,通过高温熔融缩聚反应合成了一种新型可降解的己二酸-丁二醇-尿素共聚物,并对反应时间、催化剂种类及其用量、原料配比、反应温度等因素对聚合产物的影响进行了研究。采用红外光谱（FT-IR）、核磁共振（1H-NMR）、凝胶渗透色谱（GPC）、热重分析（TG）、差示量热扫描（DSC）对产物的结构与性能进行了表征。结果表明,当丁二醇和尿素的总量与己二酸（n（丁二醇＋尿素）∶n（己二酸））的摩尔比为1.16∶1,丁二醇和尿素（n（1,4-丁二醇）∶n（尿素））的摩尔比为5∶1,最高反应温度为220℃,二月桂酸二丁基锡为催化剂且用量为原料总量的0.03%,总反应时间10h,所得到产物的重均分子量（Mw）可达12700,其颜色、热稳定性和降解性能等较好。
이기이산、1,4-정이순화뇨소위원료,재아기배경하,통과고온용융축취반응합성료일충신형가강해적기이산-정이순-뇨소공취물,병대반응시간、최화제충류급기용량、원료배비、반응온도등인소대취합산물적영향진행료연구。채용홍외광보（FT-IR）、핵자공진（1H-NMR）、응효삼투색보（GPC）、열중분석（TG）、차시량열소묘（DSC）대산물적결구여성능진행료표정。결과표명,당정이순화뇨소적총량여기이산（n（정이순＋뇨소）∶n（기이산））적마이비위1.16∶1,정이순화뇨소（n（1,4-정이순）∶n（뇨소））적마이비위5∶1,최고반응온도위220℃,이월계산이정기석위최화제차용량위원료총량적0.03%,총반응시간10h,소득도산물적중균분자량（Mw）가체12700,기안색、열은정성화강해성능등교호。
A novel adipic acid copolymer was synthesized via condensation polymerization with adipic acid, urea and, 1,4-butanediol as the raw materials. The influences of reaction time, catalyst, mass ratio of raw materials and the temperature on the property of copolymer were investigated. The structure, thermodynamic perform- ance and the molecular weights of the eopolymer were characterized by fourier transform infrared （FT-IR）, 1 H- NMR spectrum, gel permeation chromatography （GPG） and thermogravimeter-differential scanning calorimeter （TG-DSC） respectively. The results show that under the condition of 220℃, 10h, the optimal feed molar ratios n （1,4-butanediol and urea）/n （adipic acid） == 1.16 ： 1, n （adipie acid）/n （urea） = 5 ： 1, the amount of catalyst was 0.03wt %）, a desired adipic acid copolymer whose weight-average molecular weight reaches 12700 could be obtained. The prepared copolymer has higher thermostability, degradability and good appearance.