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美国FDA采用Thermo Fisher Scientific LC-MS/MS检测食品中三聚氰胺
2008年9月， Thermo Fisher Scientific Inc.(SAN JOSE, Calif.,)-- 世界领先的服务机构，宣布了一项非常实用的技术，它可以检测进口婴儿奶粉中近期新发现的一种污染物---三聚氰酸、三聚氰胺。该技术借助Thermo Scientific LC-MS/MS仪器，相关文章发表在美国食品和药物监督管理局（FDA）的实验室信息通报No. 4396，标题为：“鲶鱼中三聚氰胺残留检测--亲水作用色谱三重四极杆串联质谱联用”。最近的新闻消息铺天...
http://www.polymer.cn/trading/news_detail_511 |
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Preparation of microfibers by ice-segregation-induced selfassembly of hollow PNIPAM microgels
关键字：ice-segregation-induced self-assembly,hollow microgel,thermo-responsiveness,N-isopropylacrylamide
A new hydrogel microfiber with dense pore structure was prepared by ice-segregation-induced self-assembly process. Mono-dispersed silica/poly (N-isopropylacrylamide (PNIPAM) core-shell composite microgels were firstly synthesized by seed-emulsion polymerization. 3-...
http://www.polymer.cn/research/dis_info11601 |
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Study on a thermo sensitive PNIPAM coated silica particle by light scattering
关键字：PNIPAM coated silica particle, size, zeta potential, temperature dependence,
Poly(N-isopropylacrylamide) (PNIPAM) is a thermo-sensitive polymer, which undergoes a reversible phase transition from an extending configuration to a condensed structure when the temperature is higher than the lower critical solution temperature&nbs...
http://www.polymer.cn/research/dis_info9617 |
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New Methods to Synthesize Nano-sized Spherical Polyelectrolyte Brushes
关键字：Spherical polyelectrolyte brush，dynamic light scattering，thermo-controlled emulsion Polymerization，photo-emulsion polymerization
Nano-sized spherical polyelectrolyte brushes were synthesized by two novel methods: Thermal-controlled emulsion polymerization and photo-emulsion polymerization. The brush particles consist of a solid polystyrene core and a poly(acrylic acid) (PAA) s...
http://www.polymer.cn/research/dis_info7542 |
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Fiber Structure Development in Melt Spinning of Thermo-plastic Poly(vinyl alcohol)
关键字：Birefringence, Crystallization, Neck-like deformation, Bicomponent spinning,Polypropylene
Thermo-plastic poly(vinyl alcohol) (TP-PVA) is a modified PVA with its melting temperature lower than the thermal decomposition temperature. Therefore, melt spinningprocess can be applied for the fabrication of TP-PVA fibers.
http://www.polymer.cn/research/dis_info5087 |
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A Study on Functional Fabrics Knitted From Profiled Polyester
关键字：functional knitted fabric, profiled polyester, thermo-hydro comfort, moisture liquid transmitting properties, fabric structure
The functional knitted fabrics are designed and knitted from profiled polyester, which is characterized bu thermo-hudro comfort properties, especially transmiting mositure liquid fleetly. Experiments are carried out to measure fabric water conte...
http://www.polymer.cn/research/dis_info1689 |
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Preparation of microfibers by ice-segregation-induced selfassembly of hollow PNIPAM microgels
关键字：ice-segregation-induced self-assembly,hollow microgel,thermo-responsiveness,N-isopropylacrylamide
A new hydrogel microfiber with dense pore structure was prepared by ice-segregation-induced self-assembly process. Mono-dispersed silica/poly (N-isopropylacrylamide (PNIPAM) core-shell composite microgels were firstly synthesized by seed-emulsion polymerization. 3-...
http://www.polymer.cn/research/dis_info11601 |
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Study on a thermo sensitive PNIPAM coated silica particle by light scattering
关键字：PNIPAM coated silica particle, size, zeta potential, temperature dependence,
Poly(N-isopropylacrylamide) (PNIPAM) is a thermo-sensitive polymer, which undergoes a reversible phase transition from an extending configuration to a condensed structure when the temperature is higher than the lower critical solution temperature&nbs...
http://www.polymer.cn/research/dis_info9617 |
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New Methods to Synthesize Nano-sized Spherical Polyelectrolyte Brushes
关键字：Spherical polyelectrolyte brush，dynamic light scattering，thermo-controlled emulsion Polymerization，photo-emulsion polymerization
Nano-sized spherical polyelectrolyte brushes were synthesized by two novel methods: Thermal-controlled emulsion polymerization and photo-emulsion polymerization. The brush particles consist of a solid polystyrene core and a poly(acrylic acid) (PAA) s...
http://www.polymer.cn/research/dis_info7542 |
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Fiber Structure Development in Melt Spinning of Thermo-plastic Poly(vinyl alcohol)
关键字：Birefringence, Crystallization, Neck-like deformation, Bicomponent spinning,Polypropylene
Thermo-plastic poly(vinyl alcohol) (TP-PVA) is a modified PVA with its melting temperature lower than the thermal decomposition temperature. Therefore, melt spinningprocess can be applied for the fabrication of TP-PVA fibers.
http://www.polymer.cn/research/dis_info5087 |
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