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1)  dispersed settlement
分散聚落
2)  dispersed settlements
分散集落
1.
In Japan, the dispersed settlements in rural area, formed in 19th century with the broken of land rule, were the base of industrialization and urbanization.
政策引导下的国家投入与地方建设使农村在分散集落中出现了大量的人口聚居区,即相互联系的小规模的开放性的多元分散城市。
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3)  settlment distribution
聚落分布
4)  dispersion polymerization
分散聚合
1.
Synthesis of P(DMDAAC-AM) as cationic polymeric flocculants by dispersion polymerization;
阳离子型高分子絮凝剂P(DMDAAC-AM)的分散聚合制备初探
2.
Monodispersed cationic microspheres of polystyrene prepared by dispersion polymerization;
分散聚合制备单分散阳离子型聚苯乙烯微球
3.
Preparation of monodisperse polyacrylamide sphere by dispersion polymerization——Study on conversion and molecular;
分散聚合法制备单分散聚丙烯酰胺微球——反应动力学、分子量研究
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5)  dispersion copolymerization
分散共聚
1.
The pH-responsive crosslinking poly(ethylene glycol)-co-poly(acrylic acid)(PEG-co-PAAc) microspheres were prepared by dispersion copolymerization of St-PEG macromonomer with acrylic acid in 3-pentanone in the present of N,N'-methylenebisacrylamide(Bis) as crosslinker and 2,2'-Azobis(isobutyronitrile)(AIBN) as initiator.
在N,N′-亚甲基二丙烯酰胺(Bis)存在的条件下,以偶氮二异丁腈(AIBN)为引发剂,使苯乙烯单封端聚乙二醇(St-PEG)大分子单体与丙烯酸(AAc)在3-戊酮溶液中进行分散共聚反应,得到了聚乙二醇-co-聚丙烯酸(PEG-co-PAAc)交联微球。
2.
The novel spherical particles were prepared by dispersion copolymerization of AN with St in the presence of MA-PEG macromonomer in ethanol/water mixed solvents(vol/vol=4/1) at 60℃ for 24h by using 2,2′-azobisisobutyrnitrile(AIBN) as a free radical initiator.
以甲基丙烯酸单封端的聚乙二醇(MA PEG)大分子单体为反应性分散稳定剂,偶氮二异丁腈(AIBN)为自由基引发剂,在醇/水混合介质中与丙烯腈和苯乙烯(丙烯腈为主单体)进行三元分散共聚,制备得到了亚微米级,粒径均一,分散稳定,具有特殊形态的聚合物颗粒。
3.
Then PNIPAAm grafted poly (acrylonitrile/styrene) (PNIPAAm-g-PAN/PSt) particles in nanometer can be prepared by one-step method based on the dispersion copolymerization of PNIPAAm macromonomer with AN/St in ethanol/water mixed solvents.
以此为反应性分散稳定剂,在与丙烯腈/苯乙烯进行的三元分散共聚合中,一步合成了PN IPAAm接枝聚丙烯腈/聚苯乙烯聚合物微球。
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6)  dispersion copolymerization
分散聚合
1.
Micron-size poly(methyl methacrylate-co-styrene) microspheres were synthesized by dispersion copolymerization in a methanol-water media using polyvinylpyrrolidone(PVP) as a dispersant and 2,2′-azobisizobutyronitrile (AIBN) as an initiator.
以聚乙烯吡咯烷酮(PVP)为分散剂,以偶氮二异丁腈(AIBN)为引发剂,在甲醇/水混合溶剂中,采用分散聚合法制备出微米级的甲基丙烯酸甲酯苯乙烯共聚物微球,研究了分散介质组成、单体组成、引发剂浓度、分散剂浓度、反应温度等反应条件对聚合产物粒径及粒径分布的影响。
2.
Micron-size methyl methacrylate-styrene copolymer microspheres were prepared by dispersion copolymerization in the presence of ethanol/water mixture,using polyvinylpyrrolidone(PVP) as dispersant and stabilizer and azobisiobutyronitrile(AIBN) as initiator.
以聚乙烯吡咯烷酮(PVP)为分散剂,偶氮二异丁腈(AIBN)为引发剂,乙醇/水混合溶剂为分散介质,用分散聚合方法制备出微米级甲基丙烯酸甲酯-苯乙烯共聚物微球。
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补充资料：分散
分子式：
CAS号：

性质：两相系统，其中一相由分得很细的粒子(通常在胶体大小范围)组成，分布于整个大物质问，粒子称分散相或称内相而大物质称作连续相或称外相。在自然条件下这种分布通常不均匀，但在控制下可以增进均匀度。方法是加入润湿剂或分散剂(界面活性剂)例如脂肪酸。不同的可能系统有：气体/固体(泡沫塑胶)；液体/气体(雾)；气体/液体(泡沫)；固体/气体(烟雾)；液体/液体(乳化)；固体/液体(漆)；及固体/固体(炭黑在橡胶中)。有些形式，例如牛乳及橡胶浆的稳定是借保护胶体的附着涂膜防止分散粒子的集结。固体在液体中的胶体分散(不严格地称溶液)可经由加入电解质中和粒子上的电荷而将其沉淀下来。较大颗粒会逐渐集结上升或下沉则视其密度而定。

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