目录产品

Poly(vinyl alcohol), MW 25000, 88% hydrolyzed (PVA 25K 88%)

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Catalog No. Packaging Size 价格 数量
02975-100 100 g
NT$1,050.00
02975-500 500 g
NT$2,800.00
Bulk Quote

描述

Polyvinyl alcohols (PVA, PVOH) are water-soluble resins of low toxicity. The water solubility primarily depends upon degree of hydrolysis of polyvinyl acetate. 88% hydrolyzed product have high degree of solubility, even in cold water, but for the complete dissolution heating to 85°C is required. Higher hydrolysis grade products require progressively more energy to dissolve because of their greater degree of crystallinity. For complete dissolution, these grades require heating to ~95°C.

88 mol% hydrolyzed   Polydispersity ~1.9 

Soluble in: DMSO, acetamide, glycols, DMF and water.
CAS#:
9002-89-5
Molecular Weight:
~25,000
Melting Point:
>220°
Tg:
85°
Density:
1.29
Viscosity:
4% AQ cps = 5.2-6.2%
Soluble In:
hot glycerol, hot glycols, hot water.
Reference(s):

Reineke, J. et al. Can bioadhesive nanoparticles allow for more effective particle uptake from the small intestine? Journal of Controlled Release 170, 477–484 (2013). doi:10.1016/j.jconrel.2013.05.043

Inyang, H. I., Fodor, A., Bae, S. & Mbamalu, G. Polymer Solution–Clay Interaction Effects on Contaminant Barrier Material Integrity: Part I—Solution Characteristics. Environmental Engineering Science 26, 1541–1550 (2009). doi:10.1089/ees.2009.0006


TSCA
 
Hazards:
Harmless-use normal precautions
Handling:
Exercise normal care
Storage:
Store at room temperature
Code:
A2g - (hazard/handling/storage codes)

MSDS / Technical Data Sheets / Product Literature

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