CAJ | 학술논문

采用熔融共混法制备了聚乳酸（PLA）/聚己内酯（PCL）共混物，并对其进行红外光谱和拉曼光谱分析对比：PLA/PCL共混物的红外反射光谱在1274，1184cm-1处的峰强度随PCL含量增加而增大，1090cm-1处峰强度随PLA含量减少而降低，峰强度与共混组分配比对应关系不太明显；PLA/PCL共混物的拉曼光谱在875cm-1处出现PLA的中等强度吸收峰，在914cm-1处出现PCL的中等强度吸收峰，吸收峰强度与共混组分配比间存在明确对应关系；采用拉曼光谱分析PLA/PCL共混物所得信息多于红外光谱，可用该方法对其进行定性和半定量分析。
채용용융공혼법제비료취유산（PLA）/취기내지（PCL）공혼물，병대기진행홍외광보화랍만광보분석대비：PLA/PCL공혼물적홍외반사광보재1274，1184cm-1처적봉강도수PCL함량증가이증대，1090cm-1처봉강도수PLA함량감소이강저，봉강도여공혼조분배비대응관계불태명현；PLA/PCL공혼물적랍만광보재875cm-1처출현PLA적중등강도흡수봉，재914cm-1처출현PCL적중등강도흡수봉，흡수봉강도여공혼조분배비간존재명학대응관계；채용랍만광보분석PLA/PCL공혼물소득신식다우홍외광보，가용해방법대기진행정성화반정량분석。
Polylactic?acid(PLA)/polycaprolactone(PCL)?blends?were?prepared?by?melt?blending?process?and?compared?by?infrared?spectrum?and?Raman?spectrum.?The?peak?intensity?of?1?274,1?184?cm-1?in?infrared?reflectance?spectra?increased?with?the?increase?of?PCL?content,while?the?peak?intensity?of?1?090?cm-1?decreased?with?the?decrease?of?PLA?content.?The?relation?between?the?component?ratio?and?the?peak?intensity?was?not?obvious.?Raman?spectra?of?the?blends?showed?a?medium?intensity?peak?of?875?cm-1?and?914?cm-1,which?was?respectively?corresponding?to?PLA?and?PCL.?There?was?definite?relation?between?the?peak?intensity?and?the?component?ratio.?Information?obtained?by?Raman?spectrum?was?more?than?that?of?infrared?spectrum,indicating?that?Raman?spectra?could?be?used?for?qualitative?and?semi-quantitative?analysis?of?the?blends.