上海西宝生物科技有限公司(Seebio)是美国聚合物标准品公司(APSC)的中国区官方授权代理。主要提供有机凝胶色谱标准品(Organic GPC/SEC Standards)和水性凝胶色谱标准品(Aqueous GPC/SEC Standards)两类产品。
Polybutylene Terephthalate
Catalog # | Mw | Mn | Mz | IV* | Qty. |
PBT55K | 54,600 | 24,200 | 93,000 | 1.200 | 1.0g |
PBT52K | 52,500 | 27,200 | 82,000 | 1.145 | 1.0g |
PBT44K | 43,600 | 21,200 | 71,000 | 1.000 | 1.0g |
PBT37K | 37,200 | 18,300 | 58,200 | 0.850 | 1.0g |
PBT29K | 29,300 | 15,900 | 45,000 | 0.670 | 1.0g |
PBT16K | 16,150 | 8,150 | 27,500 | 0.284 | 1.0g |
IV* - Intrinsic Viscosity in o-chlorophenol at 25°C
Mark-Houwink Parameters: a = 915; K = 0.0000622