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The adaptive immune response is thought to be responsible for viral clearance and disease pathogenesis during hepatitis B virus infection. It is generally acknowledged that the humoral antibody response contributes to the clearance of circulating virus particles and the prevention of viral spread within the host while the cellular immune response eliminates infected cells. The T cell response to the...
Poly(vinyl chloride) (PVC) is shown to be completely miscible in the melt with a poly(methyl methacrylate-co-styrene) (P(MMA-co-St)) copolymer having a low styrene content (0-10 wt%). In blends of PVC with a low molecular weight P(MMA-co-St) copolymer containing 20 wt% of styrene, a lower critical solution temperature is found at approximately 170°C. For blends of PVC with P(MMA-co-St) copolymers...
The microvoiding mechanisms and mechanical properties of a blend of poly(vinyl chloride) (PVC) with methyl methacrylate-butadiene-styrene (MBS) graft copolymers are investigated. It is found that the toughening effect is independent of the type of microvoiding mechanism occurring in the blend. Both internal cavitation of the MBS particles and debonding at the PVC/MBS interface relieve the triaxial...
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