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POLYMER BLENDS COMPRISING POLYCARBONATE AND POLYMETHYL METHACRYLATE
POLYMER BLENDS COMPRISING POLYCARBONATE AND POLYMETHYL METHACRYLATE
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机译:包含聚碳酸酯和甲基丙烯酸甲酯的聚合物共混物
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摘要
The disclosure concerns a polymer derived from melt extrusion of (i) 80 to 95 wt % polycarbonate; said polycarbonate having and endcap level of 45% to 80% and a branching level of 300-5,000 m comprising the following branching structures: (ii) 4.9 to 20 wt % polymethyl methacrylate; and (iii) 0.1 to 1.5 wt % of catalyst; wherein the polymer is transparent, and wherein transesterification occurs with at least a portion of the polycarbonate and the polymethyl methacrylate during melt extrusion.
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