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| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 18일 (목요일) 11:00~12:30 |
| Code |
POLY.P-1 |
| Subject |
High-transparent and good impact strength polycarbonate-polysiloxane copolymers process |
| Authors |
Jieun Kim, Seong Hyen Heo*, Youngdo Kwon*
Chemical Research Laboratory, Samyang Corporation, Korea
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| Abstract |
This application relates to polycarbonate-polysiloxane copolymers having high transparency and good impact strength. Polycarbonate-polysiloxane copolycarbonates of bisphenol A (BPA) and siloxane comonomers are known to have excellent impact resistance properties in comparison with BPA homopolycarbonates, especially at lower temperatures. Such materials have found commercial use in articles such as helmets, automobile parts, and many other applications requiring impact resistance and transparency.
This polycarbonate-polysiloxane block copolymer is composed of at least one polycarbonate block, at least one polysiloxane block, and a bit of surface modifying agent that includes at least one polysiloxane segment. As the number of polysiloxane block increases, the impact resistance improves, but the transparency suffers, and vice versa. In order to improve transparency while obtaining good impact strength, a shorter unit of polysiloxane comonomer was used. The copolymer also exhibits improved hemocompatibility and therefore can be useful for a variety of articles that may contact blood.
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| E-mail |
jieun.kim@samyang.com |
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122nd General Meeting of the KCS