Poly(Iso-Butylene)聚异丁烯标准品CAS9003-27-4 有机凝胶色谱标准品（Organic GPC/SEC Standards）
（1）低分子量 聚异丁烯
Low Mw Poly(Iso-Butylene)
Catalog # Mp Mw Mn
PIB114 114 114 114
PIB226 226 226 226
PIB300 297 315 289
PIB320 320 341 314
PIB345 343 365 334
PIB400 460 475 435
PIB500 497 546 503
PIB565 587 624 562
PIB665 664 669 601
PIB720 720 900 675
PIB780 783 745 665
PIB840 840 776 675
PIB890 898 1,028 827
PIB960 960 950 833
PIB990 989 1,057 948
PIB1200 1,236 1,213 1,122
PIB1300 1,309 1,319 1,237
PIB1450 1,454 1,362 1,440
a & K values for Mw 1,000 & Above
(a = 0.661; K = 0.000197)
250mg包装
（2）中等▼分子量 聚异丁烯
Medium Mw Poly(Iso-Butylene)
Catalog # Mp Mw Mn
PIB6000 6,000 6700 5,400
PIB7600 7,600 8,100 6,700
PIB8100 8,100 10,000 5,400
PIB9000 9,000 9,900 7,500
PIB10000 10,100 10,800 8,700
PIB14K 14,500 15,700 12,000
PIB21K 21,400 20,900 13,900
PIB33K 32,200 33,800 30,000
PIB37K 37,600 47,400 34,200
PIB51K 51,300 63,700 43,500
PIB79K 79,500 92,300 65,500
PIB85K 87,600 87,000 72,100
250mg包装
（3）高分子量 聚异丁烯
High Mw Poly(Iso-Butylene)
Catalog # Mp Mw Mn
PIB90K 90,200 107,000 72,300
PIB95K 95,400 102,300 76,500
PIB100K 100,200 117,100 78,100
PIB108K 105,000 131,900 82,900
PIB115K 112,300 126,300 88,500
PIB135K 133,000 140,000 117,000
PIB150K 147,700 177,900 118,200
PIB168K 168,400 204,700 130,200
PIB205K 205,000 256,600 164,000
PIB256K 256,500 286,000 218,800
PIB266K 266,000 293,800 240,800
PIB367K 367,500 412,000 303,500
PIB400K 398,800 476,300 301,100
250mg包装
（4）超高分子量 聚异丁烯
Ultra High Mw Poly(Iso-Butylene)
Catalog # Mp Mw Mn
PIB570K 570,000 721,900 410,200
PIB820K 820,000 912,000 645,000
PIB925K 923,500 1,165,000 710,600
PIB959K 959,500 1,155,000 653,500
PIB1000K 1,020,000 1,110,000 710,600
PIB1265K 1,265,000 1,330,000 860,500
PIB1334K 1,334,000 1,565,000 971,200
PIB1430K 1,430,000 1,600,000 1,235,000
PIB1500K 1,500,000 1,580,000 950,000
PIB2000K 2,000,000 2,170,000 1,685,000
PIB2100K 2,100,000 2,350,000 1,403,000
PIB2300K 2,308,000 2,574,000 1,540,000
PIB2438K 2,438,000 2,700,000 1,318,000
PIB2600K 2,600,000 2,990,000 2,050,000
250mg包装
（5）宽分子量分布 聚异丁烯
Broad MWD Poly(Iso-Butylene)
Catalog # Mw Mn Mz IV*
PIB1400K 1,736,000 992,000 2,810,000 2.354
PIB1300K 1,309,000 485,400 2,850,000 2.785
PIB105K 105,000 59,200 196,000 0.495
PIB80K 79,800 30,000 162,700 0.365
PIB75K 76,200 21,900 181,700 0.353
PIB10K 9,700 2,500 20,700 0.099
PIB6K 7,200 2,050 12,800 0.085
PIB3K 2,750 1,300 4,800 0.061
PIB1K 1,600 950 3,600 0.043
1.0g包装

注解：

Mn Number average molecular weight

Mp Peak average molecular weight

Mv Viscosity average molecular weight

Mw Weight average molecular weight

Mz Z-average molecular weight

IV* Intrinsic Viscosity (dl/gm)

数均分子量（Number-average molecular weight）：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。

重均分子量（ Weight-average molecular weight）：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。

Z均分子量（Z-average molecular weight ）：按照Z值统计平均的分子量

粘均分子量（Viscosity- average molecular weight）：对于一定的聚合物－溶剂体系，其特性粘▆数[η]不同。

Mz > Mw > Mv > Mn，Mv略低于Mw

Mn靠近聚合物中低分子量的部分，即低分子量部分ㄨ对Mn影响较大

Mw靠近聚合物中高分子量的部分，即高分子量部分对Mw影响较大

一般用Mw来表征聚合物♂比Mn更恰当，因为聚合物的性能如强度、熔体粘度更多地依赖于样品中较大的分子。