N-异丙基丙烯酰胺(NIPAM)的分子同时包含亲水性的酰胺基与疏水性的异丙基,这一独特结构赋予了它一项非凡的特性。其聚合物在温度接近32℃时会发生可逆的相变—这是它作为智能响应材料核心价值的来源。
NIPAM的熔点为60-63°C,而聚合物的临界溶液温度(LCST)约为32°C。当温度低于LCST时,聚合物链呈亲水性伸展状态;而当温度升高至LCST以上时,聚合物链则迅速转变为疏水性收缩状态。这种快速、可逆的“开关”特性,使NIPAM成为构建智能生物材料的理想单体。它能用于制备聚(N-异丙基丙烯酰胺) 热敏性聚合物或共聚物类水凝胶,这种水凝胶在高于临界温度时会急剧收缩。
利用这一特性,科学家能够创造出能够“感知”温度变化并作出精确反应的智能系统。无论是药物在特定温度下的定点释放,还是细胞在受控环境中的培养支架,NIPAM都能提供精准的响应方案。
| 品名 | CAS | 货号 |
|---|---|---|
| N-Isopropylacrylamide, 98% N-异丙基丙烯酰胺 | 2210-25-5 | 971655新 |
| 品名 | CAS | 货号 |
|---|---|---|
| 2-Hydroxyethyl methacrylate, 98%, stabilized with 200 ppm MEHQ 2-羟基乙基 甲基丙烯酸酯 | 868-77-9 | 225147 |
| 2-Hydroxyethyl methacrylate, 98%, stabilized with 200 ppm MEHQ, <20 APHA 2-羟基乙基 甲基丙烯酸酯 | 868-77-9 | 969669 |
| 2-(Diethylamino)ethyl methacrylate, 99.5%, stabilized with MEHQ 2-(二乙氨基)乙基 异丁烯酸酯 | 105-16-8 | 616162 |
| 1-Vinyl-2-pyrrolidinone, 99.5%, stabilized with 10 ppm BPD 1-乙烯基-2-吡咯烷酮 | 88-12-0 | 940820 |
| 1-Vinyl-2-pyrrolidinone, 99.5%, stabilized with MEHQ 1-乙烯基-2-吡咯烷酮 | 88-12-0 | 323197 |
| N-Isopropylacrylamide, 98% N-异丙基丙烯酰胺 | 2210-25-5 | 971655新 |
| ε-Caprolactone monomer, 99% ε-己内酯 | 502-44-3 | 442127 |
| Lactide, 99% 丙交酯 | 95-96-5 | 201260 |
| 1,4-Dioxane-2,5-dione, 99% 1,4-二氧-2,5-二酮 | 502-97-6 | 221527 |
| 品名 | CAS | 货号 |
|---|---|---|
| N,N'-Methylenebisacrylamide, 98%, for synthesis N,N'-亚甲基双丙烯酰胺 | 110-26-9 | 971372 |
| N,N'-Methylenebisacrylamide, 97.5% N,N'-亚甲基双丙烯酰胺 | 110-26-9 | 940706 |
| Glutaraldehyde, 50 wt.% solution in H2O 戊二醛 | 111-30-8 | 902042 危化品 |
| 品名 | CAS | 货号 |
|---|---|---|
| Ammonium sulfate, 99%, AR 硫酸铵 | 7783-20-2 | 981713 |
| 2,2'-Azoisobutyronitrile, 99%, for synthesis 偶氮二异丁腈 | 78-67-1 | 925733 危化品 |
| 品名 | CAS | 货号 |
|---|---|---|
| 2-Mercaptoethanol, 99%, for electrophoresis and molecular biology 2-巯基乙醇 | 60-24-2 | 249096促 危化品 |
| 1-Dodecanethiol, 98%, reagent grade 1-十二硫醇 | 112-55-0 | 962179 危化品 |
| 品名 | CAS | 货号 |
|---|---|---|
| Carbon nanotubes, double-walled, 60%, reagent grade, inner diam.: 1 - 3 nm, outer diam.: 2 - 4 nm, length: 50 μm 碳纳米管, 双壁式 | 308068-56-6 | 974530 |
| Chitosan, Deacetylation: 85% 壳聚糖 | 9012-76-4 | 954877 |
| Silver nanowires, diam.: <50 nm, length: >10 μm 银纳米线 | 7440-22-4 | 926783 |
| 品名 | CAS | 货号 |
|---|---|---|
| Pipette fillers, 15 ml, blue, frosted, 20 pcs/pack 洗耳球 | / | 1208125 |
| 201 Stainless steel lab jacks, 150×150×250 mm 201不锈钢升降台 | / | 956619 |
| 品名 | CAS | 货号 |
|---|---|---|
| Smart Hazardous Chemical Management Cabinet HCA00, Container size: 900 * 500 * 1980mm, internal size: 650 * 420 * 1550mm, volume 423L RFID酸碱柜HCA-400 | / | 9410144 |
| Antibacterial polycotton laboratory coats, XXL(≥180cm, ≥80kg) 涤棉抗菌实验服 | / | 956267 |
| Bio-Vanguard® Antibacterial, mould and antiviral textile finishing agent 清萨灵®抗菌防霉抗病毒织物整理剂 | / | 926620 |