amide

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Polyamide 与 尼龙有什么 区别

 尼龙(Nylon,Polyamide,简称PA)是指由聚酰胺类树脂构成的塑料。Polyamide(简称PA),聚酰胺纤维俗称尼龙(Nylon)或锦纶,密度1.15g/cm&sup3,是分子主链上含有重复酰胺基团-[NHCO]-的热塑性树脂总称。包括脂肪族PA,脂肪-芳香族PA和芳香族PA。其中,脂肪族PA品种多,产量大,应用广泛,其命名由合成单体具体的碳原子数而定。是美国著名化学家卡罗瑟斯和他的科研小组发明的。用作塑料称作尼龙,用作纤维,称作锦纶,可制成长纤或短纤。

Polyamide 与 尼龙有什么 区别

Polyamide(简称PA)是一种由聚酰胺类树脂构成的塑料。尼龙是聚酰胺纤维的俗称,是一种广泛使用的合成纤维。与尼龙相比,Polyamide更注重于对纤维的描述,而尼龙更侧重于对聚合物的描述。总体来说,它们没有太大的区别,只是在使用时侧重点略有不同。

超细纤维和Polyester polyamide的区别是什么

Polyester 是涤纶polyamide 是锦纶 即尼龙超细纤维 是指高F的尼龙 或涤纶

polyamide在纺织品英语中到底是什么面料?

Polyamide是锦纶,俗称尼龙。并不是涤纶,涤纶的英文是Polyester

POLYAMIDE是代表涤纶吗?那锦纶的是POLYAMIDE吗?

锦纶。 涤纶的英文以上三个都可以

4-cyanobenzamide是什么物质

不知道

梦妆的moisture ceramide light cream 是什么啊?

木槿水源保湿面霜是MOISTURE CERAMIDE LIGHT CREAM木槿水源保湿倍润面霜是MOISTURE CERAMIDE INTENSE CREAM

内衣上标注的spandex和polyamide,这两个词确切指什么?

Spandex译名"斯潘德克斯",是一种弹性纤维,学名聚氨酯纤维(Polyurethane),简写(PU)。中国大陆称为 "氨纶",它具有高度弹性,能够拉长6~7倍,但随张力的消失能迅速恢复到初始状态,其分子结构为一个像链状的、柔软及可伸长性的聚氨基甲酸酯,通过与硬链段连接在一起而增强其特性。 polyamide聚酰胺,尼龙,或尼纶,高强度,有弹性的合成聚合物,其分子含有反复出现的酰胺原子团。

lysergic acid amides造句 lysergic acid amidesの例文 "lysergic acid amides"是什麼意思

These include the ergot, a lysergic acid amide ( LSA ), a precursor to LSD, and ergonovine. Lysergic acid and lysergic acid amide , LSD precursors, are both classified in Ergotamine tartrate, a precursor to lysergic acid, is regulated under the Chemical Diversion and Trafficking Act. Sleepy grass plants harboring a fungal species ( of the genus " Neotyphodium " ), contain ergopne pounds, such as lysergic acid amide ( mon name, ergine ). The diethylamide moiety of LSD was found to be a key ponent for its activity, which is in accordance with the fact that the related lysergamide lysergic acid amide ( LSA ) is far less hallucinogenic in parison. Because studies on the presence of LSA in " Ipomoea violacea " do not specify the plete taxonomy of the plant, it cannot be certain that " Ipomoea violacea " contains d- lysergic acid amide . The seeds of these plants contain the psychoactive d- lysergic acid amide , or LSA . The preparation of the seeds involved grinding them on a " metate ", then filtering them with water to extract the alkaloids. The hallucinogenic properties of the seeds are usually attributed to ergine ( also known as " d- lysergic acid amide ", or Schedule III substance in the United States, parts of the plant itself are not controlled, and seeds and plants are still sold by many nurseries and garden supppers. Because of the existing Controlled Substance Act regulatory controls on the LSD precursors lysergic acid, lysergic acid amide , ergotamine, and ergonovine, clandestine laboratory operators have sought uncontrolled sources of precursor material for the production of LSD . This has led to the clandestine LSD laboratory ever, Wilpam Leonard Pickard and Clyde Apperson, that was seized by the DEA utipzed ergocristine as the LSD precursor. Common active ingredients ( among many others ) include caffeine, theobromine, other stimulant alkaloids, psychedepc agent lysergic acid amide ( illegal in many countries ), passionflower ( sedative which contains monoamine oxidase inhibitors ), Citrus aurantium ( contains *** all amounts of the stimulant synephrine ), glaucine ( plant derived pound usually used as cough medicine ), and geranamine ( alkylamine pound found in geranium oil ). The LSD It is possible that some of these studies may have mistaken " Ipomoea violacea " for " Ipomoea tricolor ", e . g ., works pubpshed in the scientific journal " Phytochemistry " and quoted by The " Sociedade Brasileira de Farmacognosia ", which purportedly showed the presence of Ergine, also known as d- lysergic acid amide ( LSA ) in " Ipomoea violacea ". It"s difficult to see lysergic acid amides in a sentence. 用 lysergic acid amides 造句挺难的

amide是什么东西,中文名是什么

酰胺

cocodiethanolamide翻译

椰子基二乙醇酰胺

polyamide film是什么材质

OPA是双向拉伸尼龙薄膜(Biaxially oriented polyamide (nylon) film)的英文简称 双向拉伸尼龙薄膜(BOPA)是生产各种复合包装材料的重要材料,目前成为继BOPP、BOPET薄膜之后的第三大包装材料。BOPA薄膜的特点和主要用途与其他薄膜相比,BOPA薄膜比PE、BOPP薄膜具有更高的强度,比EVOH、PVDC薄膜具有低成本和环保方面的优势,是食品保鲜、保香的理想材料嘉兴印刷,特别适合于冷冻、蒸煮、抽真空包装,且无毒无害。具体表现在以下几个方面: (1)良好的透明性和光泽度,雾度低。 (2)优异的韧性和耐穿刺性。 (3)极好的气体(氧气、氮气、二氧化碳)、香味和气味阻隔性。 (4)优异的耐油性、耐油脂性和耐化学溶剂性。 (5)便于加工,可进行涂敷、金属化处理,或与其他基材复合等。 (6)适用温度范围广泛(-60℃-150℃)。 (7)耐热性强。

Enzalutamide作用于AR的亲和性高吗?

Enzalutamide (MDV3100)是一种androgen-receptor (AR)拮抗剂,在 LNCaP细胞中IC50为36 nMEnzalutamide是雄激素受体(AR)拮抗剂,IC50为36 nM。在加入16β-[18F]氟-5α-DHT (18-FDHT)的竞争性实验中发现作用于AR时Enzalutamide比bicalutamide具有更高的亲和力。而Enzalutamide作用于LNCaP/AR(AR-过量表达)前列腺细胞时没有效果。在亲本LNCaP细胞中,Enzalutamide抑制前列腺特异性抗原(PSA)和跨膜丝氨酸蛋白酶2(TMPRSS2) 的产生,及抑制它们与合成的雄激素R1881 结合。Enzalutamide可抑制突变AR蛋白(W741C, 741位上的Trp突变为Cys)的翻译活性。[1]MDV310也阻断核转位和配位受体复合物招募辅激活因子。参考链接:http://www.selleck.cn/products/MDV3100.html