폴리테트라메틸렌 에테르 글리콜
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폴리테트라메틸렌 에테르 글리콜 속성
- 녹는점
- 33-36 °C
- 밀도
- 1 g/mL at 25 °C
- 증기압
- <0.01 mm Hg ( 25 °C)
- 굴절률
- n
20/D 1.465
- 인화점
- >230 °F
- 저장 조건
- Store below +30°C.
- 용해도
- <10g/L
- Specific Gravity
- 0.961
- 수소이온지수(pH)
- 7 (H2O, 20℃)Aqueous solution
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37/38 | ||
| 안전지침서 | 26-36 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | MD0916000 | ||
| HS 번호 | 3907 20 20 | ||
| 독성 | LD50 orally in Rabbit: > 5000 mg/kg | ||
| 기존화학 물질 | KE-20217 |
| 그림문자(GHS): |
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| 신호 어: | Warning | ||||||||||||||
| 유해·위험 문구: |
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| 예방조치문구: |
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폴리테트라메틸렌 에테르 글리콜 C화학적 특성, 용도, 생산
화학적 성질
mp 11 - 38 °C 100 - 4,400 mPa.s @ 40 °C제조 방법
Low molecular weight polymers of tetrahydrofuran were introduced commercially in 1955. The polymers were intended for use in the preparation of flexible polyurethane foams, being terminated by hydroxyl groups:
Although these polyethers produced good foams they were rather expensive and were soon displaced by the cheaper propylene oxide-based polyethers. However, these polymers of tetrahydrofuran (commonly called poly(oxytetramethylene)glycol) now find use in the preparation of polyamide, polyester and polyurethane thermoplastic elastomers.
Details of the manufacture of polytetrahydrofuran have not been disclosed. Polymerization of tetrahydrofuran can be effected only by cationic initiators. Combinations of metal halides with water are not effective but protic acids (e.g. HCl04) and oxonium salts (e.g. (C2H5￡?3O+BF4-) are efficient initiators. Polymerization occurs by a ring-opening mechanism involving a tertiary oxonium ion, e.g.
정의
ChEBI: A macromolecule composed of repeating oxybutylene units.폴리테트라메틸렌 에테르 글리콜 준비 용품 및 원자재
원자재
준비 용품
폴리테트라메틸렌 에테르 글리콜 공급 업체
글로벌( 217)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12470 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 6011 | 58 |
| airuikechemical co., ltd. | +undefined86-15315557071 |
sales01@airuikechemical.com | China | 994 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 |
admin@zlchemi.com | China | 2999 | 58 |
| Hebei Shengyang Water Conservancy Engineering Co., Ltd. | +8615373025980 |
clara@hbshengyang.com | China | 783 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21687 | 55 |
| Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5909 | 58 |