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不同尺寸单分散PMMA/GMA/DVB聚合物荧光微球的制备 被引量:9
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作者 刘宏波 汪长春 《化学学报》 SCIE CAS CSCD 北大核心 2008年第10期1269-1273,共5页
采用无皂乳液聚合及种子无皂乳液聚合方法制备了200~800nm四种不同尺寸的单分散PMMA/GMA/DVB(PMGD)复合微球.用扫描电镜(SEM)和动态光散射(DLS)对粒径尺寸、形貌进行了表征.实验发现单体滴加速度是影响种子无皂乳液聚合过程二次成核的... 采用无皂乳液聚合及种子无皂乳液聚合方法制备了200~800nm四种不同尺寸的单分散PMMA/GMA/DVB(PMGD)复合微球.用扫描电镜(SEM)和动态光散射(DLS)对粒径尺寸、形貌进行了表征.实验发现单体滴加速度是影响种子无皂乳液聚合过程二次成核的关键因素.用乙二胺对微球表面的环氧基团开环后,通过在微球表面接枝树枝状PAMAM(d-PAMAM)达到微球表面的官能化的目的,元素分析和红外光谱实验证明了微球表面d-PAMAM的存在.最后利用微球表面的活性氨基与四甲基异硫氰酸罗丹明(TRITC)反应,得到四种尺寸的水分散性的红色荧光微球。 展开更多
关键词 无皂乳液聚合 种子无皂乳液聚合 单分散 树枝状聚酰胺胺(d-PAMAM) 荧光微球
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Synthesis of submicron-sized peanut-shaped poly(methyl methacrylate)/polystyrene particles by seeded soap-free emulsion polymerization 被引量:2
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作者 Shan Shi Tao Wang +2 位作者 Yan Tao Tang Li Min Zhou Shin Ichi Kuroda 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第9期1127-1129,共3页
Submicron-sized peanut-shaped poly(methyl methacrylate)/polystyrene (PMMA/PS) particles were successfully synthesized by seeded soap-free emulsion polymerization of styrene on the spherical crosslinked PMMA seed p... Submicron-sized peanut-shaped poly(methyl methacrylate)/polystyrene (PMMA/PS) particles were successfully synthesized by seeded soap-free emulsion polymerization of styrene on the spherical crosslinked PMMA seed particles. The obtained peanut- shaped particles showed a novel internal morphology: PS phase formed one domain which linked to the other domain having PMMA core encased by PS shell. 展开更多
关键词 Peanut-shaped seeded soap-free emulsion polymerization Submicron-sized Nonspherical particle
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Poly(2-acetoxyethyl methacrylate)/polystyrene latex interpenetrating polymer networks with well-defined phase-separated structure 被引量:1
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作者 Tao Wang Shan Shi +2 位作者 Li Na Bian Li Min Zhou Li Qun Zhao 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第12期1505-1508,共4页
A series of poly(2-acetoxyethyl methacrylate)/polystyrene(PAEMA/PS) latex interpenetrating polymer networks(LIPNs) were prepared by seeded soap-free emulsion polymerization of styrene on the crosslinked PAEMA se... A series of poly(2-acetoxyethyl methacrylate)/polystyrene(PAEMA/PS) latex interpenetrating polymer networks(LIPNs) were prepared by seeded soap-free emulsion polymerization of styrene on the crosslinked PAEMA seed particles using an oil-soluble initiator.These PAEMA/PS LIPNs showed a well-defined phase-separated structure with PS phase dispersing in continuous PAEMA phase.The domain size of PS phase was found to depend on the crosslinking degree of PAEMA seed particles and the amount of second-stage styrene monomer. 展开更多
关键词 PHASE-SEPARATION IPN seeded soap-free emulsion polymerization CROSSLINKING PARTICLE
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PREPARATION OF MICRON-SIZED NONSPHERICAL POLYSTYRENE/POLY(STYRENE-co-ETHYLENEGLYCOL DIMETHACRYLATE) PARTICLES BY SEEDED SOAP-FREE EMULSION POLYMERIZATION 被引量:1
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作者 石山 Shin-ichi Kuroda 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2011年第5期634-638,共5页
Micron-sized nonspherical polymer particles having different morphologies were synthesized by seeded soap-free emulsion polymerization of styrene (St) and ethyleneglycol dimethacrylate (EGDMA, used as a crosslinker... Micron-sized nonspherical polymer particles having different morphologies were synthesized by seeded soap-free emulsion polymerization of styrene (St) and ethyleneglycol dimethacrylate (EGDMA, used as a crosslinker) on spherical, linear polystyrene (PS) seed particles. The morphology of the resulting PS/poly(St-co-EGDMA) particles was dependent on the crosslinker concentration and polymerization temperature. 展开更多
关键词 Nonspherical Polymer particles seeded soap-free emulsion polymerization Crosslinking.
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毛发状高分子微球的设计与制备
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作者 张龙 常成明 +2 位作者 周芳名 任淑萍 石山 《沈阳化工大学学报》 CAS 2016年第2期140-145,共6页
以甲醇为分散介质、聚乙烯基吡咯烷酮(PVP)为分散剂、偶氮二异丁腈(AIBN)为引发剂,采用分散聚合法制备出单分散微米级聚苯乙烯(PS)微球.通过种子无皂乳液聚合法,以PS微球为种子、过硫酸钾(KPS)为引发剂,将一种可聚合光引发转移终止剂二... 以甲醇为分散介质、聚乙烯基吡咯烷酮(PVP)为分散剂、偶氮二异丁腈(AIBN)为引发剂,采用分散聚合法制备出单分散微米级聚苯乙烯(PS)微球.通过种子无皂乳液聚合法,以PS微球为种子、过硫酸钾(KPS)为引发剂,将一种可聚合光引发转移终止剂二乙基二硫代氨基甲酸对乙烯基苄酯(VBDC)和苯乙烯(St)的共聚物负载到PS种子微球表面,得到PS/Poly(St-co-VBDC)微球.通过活性自由基聚合在PS/Poly(St-co-VBDC)微球表面用紫外光引发接枝聚丙烯酸(PAA),制备一系列表面接枝不同长度PAA的PS/Poly(St-co-VBDC)毛发状微球.利用动态光散射(DLS)、红外光谱(IR)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等多种方法对所得各种高分子微球进行了详细表征. 展开更多
关键词 分散聚合 种子无皂乳液聚合 引发转移终止剂 毛发状微球
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