聚氧乙烯标准品polyethyleneoxide，peo，cas: 25322-68-3
synonyms:peox; polyoxyethylene
formula:(c2h4o)nh2o
physicalappearance: solid
solubility:soluble in water
anionic, narrowmwd
catalog #
mp
mw
mn
iv* (dl/gm)
价格/规格
peox1200k
1,105,000
1,208,000
975,000
5.850
￥2516.0/200mg
peox1000k
1,001,000
992,000
886,000
5.869
￥2516.0/200mg
peox900k
814,000
873,000
759,000
5.620
￥2516.0/200mg
peox600k
610,000
630,000
594,000
3.950
￥2516.0/200mg
peox275k
250,000
275,700
230,000
2.200
￥2516.0/200mg
peox270k
258,000
273,000
243,750
2.247
￥2516.0/200mg
peox250k
258,900
246,800
206,000
1.992
￥2516.0/200mg
peox180k
159,700
180,000
150,000
1.410
￥2516.0/200mg
peox150k
167,000
170,000
163,500
1.540
￥2516.0/200mg
peox100k
89,900
93,000
86,900
1.020
￥2516.0/200mg
peox80k
85,300
82,850
65,750
0.954
￥2516.0/200mg
peox55k
55,700
54,100
45,100
0.696
￥2516.0/200mg
peox40k
31,800
38,700
29,800
0.514
￥2516.0/200mg
peox25k
29,300
27,800
22,800
0.439
￥2516.0/200mg
note: below mw of 20,000 usepolyethylene glycol
anionic, broadmwd
catalog #
mw
mn
iv* (dl/gm)
价格/规格
peox2000k
1,750,000
540,600
6.855
￥2516.0/1.0g
peox916k
916,800
316,100
4.590
￥2516.0/1.0g
peox825k
825,200
325,000
4.300
￥2516.0/1.0g
peox700k
700,500
320,500
3.879
￥2516.0/1.0g
peox650k
644,400
334,000
3.250
￥2516.0/1.0g
peox500k
475,500
180,600
2.927
￥2516.0/1.0g
peox200k
204,000
47,000
1.497
￥2516.0/1.0g
peox120k
122,700
36,500
0.925
￥2516.0/1.0g
polyethylene oxidekits
catalog #
kit description
套装价格
peoxkit
200mg of peox25k -peox1000k
￥46376.0
peoxbrkit
1.0g of peox120k - peox2000k
￥16524.0
iv* - intrinsicviscosity in 0.05m sodium sulfate at 30°c
mark-houwinkparameters: a = 0.693; k = 0.000365
分子量参数注解：
mw -- weightaverage molecular weight / 重均分子量：按照聚合物的重量进行统计平均的分子量，i-聚体的分子量乘以其重量分数的加和。
mn -- numberaverage molecular weight/ 数均分子量：按聚合物中含有的分子数目统计平均的分子量，高分子样品中所有分子的总重量除以其分子(摩尔)总数。
mp -- peakaverage molecular weight /  峰值分子量
mv -- viscosityaverage molecular weight / 粘均分子量：对于一定的聚合物－溶剂体系，其特性粘数[η]不同。
mz -- z-averagemolecular weight / z均分子量：按照z值统计平均的分子量。
iv* -- intrinsicviscosity (dl/gm) /固有粘度
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