| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Synthesis andApplication of Polylactide-Polybutadiene-Polylactide Triblock Copolymer |
| 초록 |
Polylactide (PLA) is an aliphatic polyester derived from renewable resources and it can ultimately be degraded under compositing conditions. However, PLA has drawbacks, for example, brittleness and low impact strength. In this work, PLA was copolymerized with polybutadiene (PBD) to improve the impact properties. Triblock copolymers of polylactide-polybutadiene-polylactide (LBDL) were obtained by the ring opening polymerization of lactide using tin 2-ethylhexoate (SnOct2) as catalyst and hydroxly telechelic polybutadiene (HTPBD). HTPBD was a macroinitiator, which was synthesized by ring opening metathesis polymerization. The chemical structure of LBDL was identified by FT-IR and 1H NMR. In order to study the effect of the polymer molecular weight, the composition of LBDL was controlled by changing lactide end blocks, while keeping the middle butadiene (BD) block constant. The mechanical properties of these materials were examined by UTM and Izod test. |
| 저자 |
김나연, 이재윤, Chantiga Choochottiros, 박은하, 진인주
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| 소속 |
인하대 |
| 키워드 |
lactide; butadiene; triblock copolymer; impact modifier
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| E-Mail |
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