PEG衍生物依分子量不同而性質(zhì)不同，從無(wú)色無(wú)臭黏稠液體至蠟狀固體。分子量200～600者常溫下是液體，分子量在600以上者就逐漸變?yōu)榘牍腆w狀，隨著平均分子量的不同，性質(zhì)也有差異。從無(wú)色無(wú)臭粘稠液體至蠟狀固體。隨著分子量的增大，其吸濕能力相應(yīng)降低。本品溶于水、乙醇和許多其它有機(jī)溶劑。蒸氣壓低，對(duì)熱、酸、堿穩(wěn)定。與許多化學(xué)品不起作用。有良好的吸濕性、潤(rùn)滑性、粘結(jié)性。無(wú)毒，無(wú)刺激。平均分子量300，n=5～5.75，熔點(diǎn)-15～8℃，相對(duì)密度1.124～1.130。平均分子量600，n=12～13，熔點(diǎn)20 ～25℃，閃點(diǎn)246℃，相對(duì)密度1.13 (20℃)。平均分子量4000，n=70～85，熔點(diǎn)53～ 56℃。PEG衍生物種類如下：

支鏈PEG衍生物，即Y-型PEG衍生物，是由兩個(gè)直鏈的甲氧基PEG衍生物連接在中心核構(gòu)成。Y-型PEG衍生物立體結(jié)構(gòu)龐大，可以彌補(bǔ)單鏈接PEG衍生物的不足。常規(guī)產(chǎn)品如下：
Y-NHS-40K: Y-shape PEG NHS Ester, MW 40000?
Y-COOH-40K: Y-shape PEG Carboxyl, MW 40000
Y-MAL-40K: Y-shape PEG Maleimide, MW 40000?
Y-AALD-40K: Y-shape PEG Acetaldehyde, MW 40000?
Y-PALD-40K: Y-shape PEG Propionaldehyde, MW 40000?
Y-NH2-40K: Y-shape PEG Amine, MW 40000
Y-FITC-40K: Y-Shape PEG Fluorescein, MW 40000

直鏈單官能團(tuán)PEG衍生物一端有活性基團(tuán)，另一端由甲氧基基團(tuán)或糖基封端。常規(guī)產(chǎn)品如下：
GLUC-NHS-35K: Glucose PEG NHS Ester, MW 35000?
GALA-NHS-35K: Glucose PEG NHS Ester, MW 35000?
M-PEG-SCM: Methoxy PEG Succinimidyl Carboxymethyl Ester, MW 2000, MW 3000, MW 5000, MW 10000, MW 20000, MW 30000, MW 35000, MW 40000?
M-PEG-COOH: Methoxy PEG Carboxyl, MW 5000, MW 10000, MW 20000
M-PEG-SBA: Methoxy PEG Succinimidyl Butanoate, MW 20000
M-PEG-SHA: Methoxy PEG Succinimidyl Hexanoate, MW 5000, MW 20000
M-PEG-HA: Methoxy PEG Hexanoic Acid, MW 5000, MW 20000
M-PEG-SSA: Methoxy PEG Succinimidyl Succinamide, MW 5000, MW 20000?
M-PEG-SGA: Methoxy PEG Succinimidyl Glutaramide, MW 5000, MW 20000?
M-PEG-SC: Methoxy PEG Succinimidyl Carbonate, MW 10000, MW 12000, MW 20000?
M-PEG-NPC: Methoxy PEG Nitrophenyl Carbonate, MW 10000, MW 20000?
M-PEG-SS: Methoxy PEG Succinimidyl Succinate, MW 5000, MW 20000?
M-PEG-SG: Methoxy PEG Succinimidyl Glutarate, MW 5000, MW 20000?
M-PEG-MAL: Methoxy PEG Maleimide, MW 2000, MW 5000, MW 10000, MW 20000, MW 30000, MW 40000?
M-PEG-VS: Methoxy PEG Vinylsulfone, MW 5000, MW 20000?
M-PEG-SH: Methoxy PEG Thiol, MW 5000, MW 20000?
M-PEG-ALD: Methoxy PEG Propionaldehyde, MW 5000, MW 10000, MW 20000, MW 30000, MW 40000?
M-PEG-NH2: Methoxy PEG Amine, HCl Salt, MW 2000, MW 3000, MW 5000, MW 10000, MW 20000, MW 30000, MW 40000?
M-PEG-HZ: Methoxy PEG Hydrazide, MW 5000, MW 10000, MW 20000?
M-PEG-AZIDE: Methoxy PEG Azide, MW 5000, MW 20000?
M-PEG-BIOTIN: Methoxy PEG Biotin, MW 5000, MW 20000?
M-PEG-ACLT: Methoxy PEG Acrylate, MW 5000, MW 20000?
M-PEG-SLN: Methoxy PEG Silane, MW 5000, MW 20000?
M-PEG-DSPE: Methoxy PEG DSPE, MW 5000?
M-GLC-PEG: Custom Synthesis

同官能團(tuán)雙取代PEG衍生物。常規(guī)產(chǎn)品如下：
COOH-PEG-COOH: Carboxyl PEG Carboxyl, MW 2000, MW 3500, MW 5000, MW 7500?
SCM-PEG-SCM: PEG (Succinimidyl Carboxymethyl Ester)2, MW 2000, MW 3500, MW 5000, MW 7500?
NH2-PEG-NH2: Amine PEG Amine, HCl Salt, MW 2000, MW 3500, MW 5000, MW 7500?
MAL-PEG-MAL: Maleimide PEG Maleimide, MW 2000, MW 3500, MW 5000, MW 7500?
ACLT-PEG-ACLT: Acrylate PEG Acrylate, MW 2000, MW 3500, MW 5000, and MW 7500?
SH-PEG-SH: Thiol PEG Thiol, MW 3500, MW 5000?
VS-PEG-VS: ?Vinylsulfone PEG Vinylsulfone, MW 3500, MW 5000?

單一分子量PEG衍生物
HO-PEG-PA: Hydroxyl PEG Propionic Acid, MW 266.3, MW 618.8?
NH2-PEG-PA: Amine PEG Propionic Acid, MW 265.4, MW 617.8?
HO-PEG-NH2: Hydroxyl PEG Amine, MW 193.3, MW 545.8?
NH2-PEG-NH2: Amine PEG Amine, MW 192.3, MW 544.8 ?
HO-PEG-CM: Hydroxyl PEG Carboxyl, MW 252.3, MW 604.8?
CM-PEG-CM: Carboxyl PEG Carboxyl, ?MW 294.3, MW 662.7?
PA-PEG-PA: Propionic Acid PEG Propionic Acid, MW 338.3, MW 674.8?
HO-PEG-OH: Polyethylene Glycol, MW 362.4, MW 414.5, MW 546.7

多臂PEG衍生物，常規(guī)產(chǎn)品如下：
Core structure: pentaerythritol?
4ARM-PEG-NH2: 4arm PEG Amine, HCl Salt, MW 5000, MW 10000, MW 20000, MW 40000?
4ARM-PEG-COOH: 4arm PEG Carboxyl, MW 10000, MW 20000, MW 40000?
4ARM-PEG-SCM: 4arm PEG Succinimidyl Carboxymethyl Ester, MW 10000, MW 20000, MW 40000?
4ARM-PEG-MAL: 4arm PEG Maleimide, MW 10000, MW 20000, MW 40000?
4ARM-PEG-ACLT: 4arm PEG Acrylate, MW 10000, MW 20000?
4ARM-PEG-SH: 4arm PEG Thiol, MW 5000, MW 10000, MW 20000?
4ARM-PEG-SS: 4arm PEG Succinimidyl Succinate, MW 10000, MW 20000, MW 40000?
4ARM-PEG-SG: 4arm PEG Succinimidyl Glutarate, MW 10000, MW 20000, MW 40000

Core structure: hexaglycerin?
8ARM-PEG-NH2: 8arm PEG Amine, HCl Salt, MW 10000, MW 20000, MW 40000?
8ARM-PEG-COOH: 8arm PEG Carboxyl, MW 10000, MW 20000, MW 40000?
8ARM-PEG-MAL: 8arm PEG Maleimide (hexaglycerin), MW 10000, MW 20000, MW 40000?
8ARM-PEG-ACLT: 8arm PEG Acrylate (hexaglycerin), MW 10000, MW 20000?
8ARM-PEG-SH, 8arm PEG Thiol (hexaglycerin), MW 10000, MW 20000?
8ARM-PEG-SS: 8arm PEG Succinimidyl Succinate, MW 10000, MW 15000, MW 20000, MW 40000?
8ARM-PEG-SG: 8arm PEG Amine, MW 10000, MW 15000, MW 20000, MW 40000

Core structure: tripentaerythritol?
8ARM(TP)-PEG-NH2: 8arm PEG Amine (tripentaerythritol), HCL Salt, MW 10000, MW 20000, MW 40000?
8ARM(TP)-PEG-COOH: 8arm PEG Carboxyl(tripentaerythritol), MW 10000, MW 20000, MW 40000
8ARM(TP)-PEG-MAL: 8arm PEG Maleimide(tripentaerythritol), MW 10000, MW 20000, MW 40000
8ARM(TP)-PEG-ACLT: 8arm PEG Acrylate (tripentaerythritol), MW 10000, MW 20000
8ARM(TP)-PEG-VS: 8arm PEG Vinylsufone(tripentaerythritol), MW 10000, MW 20000
8ARM(TP)-PEG-SH: 8arm PEG Thiol(tripentaerythritol), MW 10000, MW 20000
8ARM(TP)-PEG-SS: 8arm PEG Succinimidyl Succinate (tripentaerythritol), MW 10000, MW 15000, MW 20000, MW 40000
8ARM(TP)-PEG-SG: 8arm PEG Succinimidyl Glutarate (tripentaerythritol), MW 10000, MW 15000, MW 20000, MW 40000

以上資料由西安凱新生物科技有限公司提供??！