Rosinbisester was prepared by the esterification of chlorinated rosin maleic anhydride adduct (RMA) with hydroquinone. Arylcyclotrisiloxanes containing phenyl, methyl and tolyl groups were synthesized in the presence of ZnO catalyst, and amine-terminated polyarylsiloxane prepolymers were prepared by equilibrium polymerization. Rosinimides modified with polyarylsiloxane were prepared by the imidization of rosin amic acid modified with polyarylsiloxane. The chemical structures of the obtained polymers were confirmed by IR and NMR spectroscopies. TGA results showed that thermal stability of polyarylsiloxane modified rosinimide increased with introducing phenyl group in polysiloxane. And also the weight residue of prepared rosin modified with polyarylsiloxane was approximate 70% at 500 ℃ in air. They were not soluble in common organic solvents, but soluble in aprotic polar solvents, such as DMSO. DMAc, DMF, and NMP.

염소화시킨 rosin maleic anhydride adduct(RMA)를 hydroquinone과 반응시켜 로진비스에스테르를 제조하였다. 또한 ZnO 촉매 존재 하에서 각종 치환기가 도입된 arylcyclotrisiloxane을 합성한 다음 평형중합반응으로 양말단에 아미노기가 결합된 polyarylsiloxane prepolymer를 제조하였다. 로진비스에스테르와 양말단에 아미노기가 결합된 polyarylsiloxane prepolymer로부터 rosinimide 화합물을 제조하였고 이들을 IR, NMR로 분석한 다음 열적 특성을 측정하였다. TGA 측정 결과 생성 중합체는 공기 중 500℃에서도 무게잔존율이 70%로서 우수한 열적 특성을 나타내었다. 또한 용해도를 측정한 결과 생성 중합체는 일반적인 유기용매에는 용해되지 않는 반면 DMSO, DMAc, DMF, NMP 등의 극성용매에만 용해되는 특성을 보였다.

Keywords: Rosinimides modified polyarylsiloxane; Arylcyclotrisiloxane; Thermal property