Viscometric and calorimetric studies have been carried out on the complex systems of tactic poly(methyl methacrylate) (PMMA) with tactic poly(2-hydroxyethyl methacrylate) (PHEMA). The reduced relative deviation from the additivity of the viscosity,$\eta^a_{rde}$ in the systems of tactic PHEMA/tactic PMMA blends which were obtained from non-acidic DMF and acidic DMF(pH=4) medium were measured in various unit mole fraction. By differential scanning calorimeter (DSC) method, we obtained the melting temperature, $T_m$ and the heat of fusion, $\triangleH_m$ of PHEMA/PMMA complex systems. From these results, we found that the it-PMMA/st-PHEMA blend doesn't form the complex, and the st-PHEMA/st-PMMA and it-PHEMA/it-PMMA systems form very weak complexes. On the other hand, the it-PHEMA/st-PHEMA and it-PHEMA/st-PMMA systems form compact complexes. In it-PHEMA/st-PMMA system, the main driving force is the van der Waals force, and in the other systems the hydrogen bonding act as the main driving force. The main objective of this research is to obtain more information about the possibility and the driving force of the complex formation.
점도 측정과 열적 연구에 의해 탁틱 폴리 메틸메타아크릴레이트와 탁틱 폴리 2-하이드록시메틸메타아크릴레이트간의 복합체 형성에 관해 연구하였다. 점도는 DMF 용액과 pH=4의 산성 DMF 용액에서 측정되었다. 융점과 용융열은 DSC 방법을 통하여 측정하였다.
이 결과로 부터 it-PMMA/st-PHEMA 블렌드는 복합체를 형성하지않고 it-PHEMA/it-PMMA/와 st-PHEMA/st-PMMA 블렌드는 주로 수소 결합을 통하여 약한 복합체를 형성함을 알았다. 이 결과는 it-PHEMA/it-PMMA와 st-PHEMA/st-PMMA 블렌드가 $\eta^a_{red}$ 의 증가 현상을 보임으로써 뒷받침되었다. 그리고 it-PHEMA/stPMMA 블렌드는 주로 수소 결합을 통하여 밀집된 복합체를 형성하는 반면, it-PHEMA/st-PHEMA 블렌드는 주로 van der Waals 힘을 통하여 밀집된 복합체를 형성하였다.
