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433497

Sigma-Aldrich

聚(丙二醇)，甲苯基-2,4-二异氰酸酯封端

average Mn ~2,300 (narrow MW distribution), isocyanate ~3.6 wt. %

别名:

甲苯二异氰酸酯-聚丙二醇共聚物, 聚丙二醇-甲苯二异氰酸酯共聚物

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About This Item

CAS号:
9057-91-4
MDL编号:
MFCD00217728
UNSPSC代码:
12162002
PubChem化学物质编号:
24867145
NACRES:
NA.23

表单

viscous liquid

质量水平

100

分子量

average Mn ~2,300 (narrow MW distribution)
degree of polymerization ~34

组成

isocyanate, ~3.6 wt. %

硬度

80 (Shore A, reacted with MOCA)

杂质

<0.1% residual TDI

折射率

n20/D 1.4742

粘度

≤1,700 cP(40 °C)(lit.)

密度

1.05 g/mL at 25 °C

SMILES字符串

CC(O)CO.Cc1ccc(cc1N=C=O)N=C=O

InChI key

SKQGWWNTEKONHY-UHFFFAOYSA-N

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应用

导辊和粘合剂加工垫。

特点和优势

粘度比常规聚氨酯低聚物更低。芳族异氰酸酯比脂族异氰酸酯更加活泼。芳族异氰酸酯的光稳定性不如脂族异氰酸酯。

外形

聚氨酯预聚物。

象形图

Health hazardExclamation mark
GHS08,GHS07

警示用语：

Danger

危险分类

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

靶器官

Respiratory system

储存分类代码

10 - Combustible liquids

WGK

WGK 3

闪点(°F)

235.4 °F - closed cup

闪点(°C)

113 °C - closed cup

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCW0849
MKCW8473
MKCT2425
MKCR3490
MKCN0481

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The authors discuss experience in 168 operations for extirpation and segmental resection of affected bronchi in children with bronchiectases. To prevent recanalization of the bronchus after its segmental resection and to prevent the formation of an abscess in the isolated
[Plombage of pathological pleural cavities].
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[Clinico-morphological characteristics of chronic pancreatitis in pancreatic duct occlusion using KL-3 glue].
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The authors have suggested the presence of reflux regulating the relationship between the urinary bladder and vesicoureteral segment which was called the vesico-osteal reflex (VOR). An original method of diagnostics of VOR with the help of profilometry was developed. A
[Excretory insufficiency of the pancreas after occlusion of the ductal system with glue].
V S Zemskov et al.
Vestnik khirurgii imeni I. I. Grekova, 138(3), 73-74 (1987-03-01)
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