Results 31 to 40 of about 1,441,104 (147)

用于固相放射免疫分析的一类聚合物NHS酯的合成与表征

open access: yes四川大学学报. 自然科学版, 2003
将NHS(N 羟基琥珀酰亚胺 )酯功能基团引入高分子载体上 ,合成了几种聚合物的NHS酯 .研究了合成单体NHS酯及聚合物NHS酯的合成条件 ,测试了NHS酯及聚合物NHS酯的基本特性 .该聚合物NHS酯可在温和条件下与蛋白反应 ,使蛋白以共价键结合方式固定在聚合物上 ...
胡子文   +4 more
doaj  

Abnormal Phase Transition Mechanism in the CoCrAlY Bond Coat Revealed by In Situ and Ex Situ Experiments

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT In Co‐based alloys, the γ phase is normally stable at high temperatures and the ε phase at low temperatures, and there is a martensitic transition on cooling to ∼417°C. In the γ/β dual‐phase CoCrAlY bond coat of turbine blade thermal barrier coating systems, we observed the opposite: γ remained stable at room temperature, yet it underwent a γ →
Junkai Liu   +8 more
wiley   +1 more source

论含磷聚合物的结构与性能

open access: yesGongye shui chuli, 1996
结合作者自己合成含磷均聚物与共聚物方面的经验,综述了国内外含磷聚合物开发的历史与近况,着重探讨了它们的性能,结构与性能的关系,以及聚合条件对其结构、分子量等方面可能带来的影响,同时,也展望了含磷聚合物今后的发展。
何高荣, 曾莺, 鲍其鼐
doaj   +2 more sources

Host–Guest Interactions Govern Drug Stability and Controlled Therapeutic Release: Based on Metal–Organic Frameworks as Smart Platforms

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Due to their exceptional porosity, structural versatility, and modular coordination chemistry, metal–organic frameworks (MOFs) have emerged as versatile platforms for targeted drug delivery. These structures enable fine‐tuning of pore size, surface activity, and framework stability for the encapsulation of a broad range of therapeutics ...
Rui Hua   +9 more
wiley   +1 more source

绥中36-1油田聚合物驱设备布置研究

open access: yesHaiyang gongcheng zhuangbei yu jishu, 2015
聚合物驱在海上平台的应用已超过10年,聚合物驱配套技术已经非常成熟。但是,在工程实施阶段聚合物驱设备规划及与生产设备配伍等方面尚存在问题。根据绥中36-1油田开展的聚合物驱工程,研究出适用于井口平台的聚合物驱设备布置方案,提出增加甲板面积的不同方案,并提出了聚合物驱设备布置的优化方向。
杜志胜, 徐锦锦, 马超, 张发
doaj  

壳聚糖-活性炭复合物吸附性能及抑菌性能研究

open access: yesGongye shui chuli, 2013
将壳聚糖(CTS)与活性炭(AC)制成壳聚糖-活性炭复合物(CTS-AC)。考察了壳聚糖用量、制备复合物的pH以及沉淀剂对复合物吸附性能的影响;进而研究了复合物对大肠杆菌和金黄色葡萄球菌的抑制效果。结果表明,随着复合物中壳聚糖含量的升高,复合物的吸附性能下降,但抑菌效果增强;随着制备复合物的pH的升高,复合物的吸附性能增强;以NaOH-乙醇为沉淀剂时,复合物的吸附性能最佳,但抑菌效果最差。
孙涛   +5 more
doaj   +2 more sources

Dual‐Layer Solid Electrolyte Interphase Enables Effective Suppression of Lithium Dendrites

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The heterogeneous solid electrolyte interphase (SEI) at the Li metal anode often leads to slow and uneven Li+ flux, causing severe Li dendrite growth. Herein, we combine X‐ray photoelectron spectroscopy and cryogenic transmission electron microscopy to demonstrate that a dual‐layer SEI, consisting of an inorganic inner layer and an organic ...
Huaping Wang   +4 more
wiley   +1 more source

孔雀石绿分子印迹聚合物的合成及吸附性能研究

open access: yes四川大学学报. 自然科学版, 2012
采用本体聚合法制备了孔雀石绿分子印迹聚合物.用紫外光谱、红外光谱研究了印迹聚合物的结合位点和识别机理;用扫描电镜对聚合物进行了表面形态分析;自制分子印迹固相萃取柱,研究聚合物对孔雀石绿的分离富集效果.结果表明,模板分子和功能单体通过氢键或离子键作用形成1:2型配合物;印迹聚合物粒径分布在45~80μm之间,表面富含微孔结构,有利于对孔雀石绿的吸附.实际样品测定表明,印迹聚合物具有较好的分离富集效果,可以满足痕量孔雀石绿的测定.
曹慧, 张小刚, 徐斐, 于劲松
doaj  

Review of Micro‐/Nanoscale Single Crystals: Synthesis, Size‐Dependent Key Properties Versus Deformation Instabilities, and Mitigation Strategies

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Micro‐/nanoscale single‐crystal materials have garnered significant attention due to their unique size‐dependent mechanical and functional properties, with applications spanning diverse cutting‐edge fields. This review provides a state‐of‐the‐art overview of these materials, encompassing their synthesis methods, advanced mechanical and ...
Yi Li   +16 more
wiley   +1 more source

硼氮氢化合物脱氢及制备结晶态多聚硼氮化合物的方法

open access: yes, 2011
本发明涉及硼氮氢化合物脱氢及制备结晶态多聚硼氮化合物的方法,利用催化分解硼氮氢化合物放氢合成结晶态多聚硼氮化合物,其中硼氮化合物分子式为:[NRR’BH2]n或[R(NHBH2)2]n?n为≥2的正整数。催化剂为过渡金属、过渡金属的盐、合金。结晶态多聚硼氮化合物的合成温度为-100~300 ...
何腾, 吴国涛, 陈萍, 熊智涛
core  

Home - About - Disclaimer - Privacy