CAJ | 학술논문

以不同物质的量之比的1，3-丁二醇和邻苯二甲酸酐(PA)合成了苯酐聚酯二元醇，然后用傅立叶变换红外光谱(FTIR)、核磁共振氢谱(1H-NMR)对自制的苯酐聚酯二元醇进行了表征，结果表明1，3-丁二醇和PA反应完全，两者合成的产物与预期结构相符。用自制的苯酐聚酯二元醇、甲基丙烯酸-β-羟乙酯、异佛尔酮-二异氰酸酯制备了耐高温丙烯酸酯类聚氨酯(PUR)材料。用热重(TG)、动态热机械分析(DMA)等方法对制备的丙烯酸酯类PUR材料热稳定性和耐热性能进行了研究。结果表明，制备的丙烯酸酯类PUR材料的热分解温度均在230℃以上，其储能模量、损耗模量、玻璃化转变温度(Tg)均比由聚丙二元醇400(PPG 400)制得的丙烯酸酯类PUR高；随着苯酐聚酯二元醇中PA含量的增加，合成的丙烯酸酯类PUR的Tg有所降低。当1，3-丁二醇与PA物质的量之比为2∶1时，制备的耐高温丙烯酸酯类PUR的Tg比由PPG 400制备的PUR高30℃以上。
이불동물질적량지비적1，3-정이순화린분이갑산항(PA)합성료분항취지이원순，연후용부립협변환홍외광보(FTIR)、핵자공진경보(1H-NMR)대자제적분항취지이원순진행료표정，결과표명1，3-정이순화PA반응완전，량자합성적산물여예기결구상부。용자제적분항취지이원순、갑기병희산-β-간을지、이불이동-이이청산지제비료내고온병희산지류취안지(PUR)재료。용열중(TG)、동태열궤계분석(DMA)등방법대제비적병희산지류PUR재료열은정성화내열성능진행료연구。결과표명，제비적병희산지류PUR재료적열분해온도균재230℃이상，기저능모량、손모모량、파리화전변온도(Tg)균비유취병이원순400(PPG 400)제득적병희산지류PUR고；수착분항취지이원순중PA함량적증가，합성적병희산지류PUR적Tg유소강저。당1，3-정이순여PA물질적량지비위2∶1시，제비적내고온병희산지류PUR적Tg비유PPG 400제비적PUR고30℃이상。
A series of polyester polyols were synthesized by using 1,3-butanediol and phthalic anhydride (PA) with different molar ratios. The structures of the polyester polyols were investigated by 1H-NMR and FTIR. The results show that the the structures of the synthetical products are consistent with the expected structure of polyester polyols. Then the poly(urethane-methacrylate) materials with high temperature resistance were successfully prepared by 2-hydroxyethyl methacrylate,isophorone diisocyanate and the obtained polyester polyols. The properties of the prepared materials were confirmed by dynamic mechanical analysis and thermogravimetric analysis. The results show that the thermal decomposition temperatures of the prepared materials are all above 230℃. Furthermore,the storage modulus,loss modulus and glass transition temperature (Tg) of the prepared materials are higher than those of the poly(urethane-methacrylate) materials prepared with PPG 400. Tg of the material prepared with the polyester polyols is decreased slightly with the increase of PA content in polyester polyols. When the molar ratio of the 1,3-butanediol and PA is 2∶1, Tg of the material prepared with the polyester polyols is higher about 30℃than that of the materials prepared with PPG 400.