• 作者： 徐新興；林國賡
• 作者服務機構： 國立中央大學化工系
• 中文摘要： 電子顯微鏡照相及動態粘彈性測定Tan δ?顯示SBS三團聯共聚物（TPR)具有微相分離。若在其中摻合少量成分 相近之短鏈SB雜亂型共聚物可使SBS中相界面擴大，使得SBS材料之熔融粘滯性降低。GPC ，應力鬆弛，應力-應變 等實驗桔果獲知，若所摻合之短鏈SB雜亂型共聚物之組成與SBS相近而其量在0.3%時，可大大降低其加工性而又不 影響材料成型品之機械?度。但若所摻合之量超1%以上則會使材料之平均分子量減少，因而減弱其機械?度。
• 英文摘要： Electron micrography and dynamic viscoelastic measurement show SBS (TPR) triblook copolymer exhibits microphase separation. They also show when blended with short-chain SB random copolymer the diffusion interfacial layer in TPR is expanded. GPC, stress relaxation experiment, and stress strain tests show when the content of the short-chain SB random copolymer added is below 0.3wt%, the added copolymer can function as plasticizer acting only on expanding interfacial region, thus the average molecular weight and mechanical/viscoelastic properties of the TPR product remain relatively unmodified, but, if the content of the added SB random copolymer exceeds 1%, the added short-chain SB random copolymer functions as plasticizer, which not only reduces the average molecular weight but also deteriorates me-chanical/viscoelastio properties of the TPR product.
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