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- Then the copolymer of octadecyl acrylate with maleric anhydride is obtained by solution free radical copolymerization and it is a pour depressant. 用合成的丙烯酸十八酯与顺丁烯二酸酐共聚,得到二元共聚物型原油降凝剂。
- Industrial lignosulfonate is modified to graft carboxy by the free radical copolymerization reaction to synthesize a kind of scale inhibitor-the carboxylic lignosulfonate. 采用自由基共聚反应,对工业磺化木质素进行接枝羧基的改性,制备得到羧酸型磺化木质素阻垢剂。
- Industrial lignosulfonate LS was modified to graft carboxy by the free radical copolymerization reaction.The structure of modified lignosulfonate LSA was characterized by the infrared spectrogram. 以工业木质素磺酸盐LS为原料,采用自由基共聚反应对LS进行接枝羧基改性,制备得到改性磺化木质素LSA,用红外光谱对其结构进行表征。
- micellar free radical copolymerization 自由基胶束聚合
- living free radical copolymerization 活性自由基共聚合
- Keywords C_60;Free radical copolymerization;Water-soluble nanosphere; 自由基共聚;水溶性纳米球;
- Experiment result shows that the graft copolymerization reaction agrees quite well with the general free radical mechanism and the copolymer has excellent heat stabilization. 实验结果表明,该接枝反应基本符合自由基反应的一般规律,并且其聚合产物具有明显的抗高温能力。
- Keywords molecular design;synthesis of monomer;micellar free radical copolymerization;IR spectrum;UV spectrum; 分子设计;单体合成;胶束自由基聚合;红外光谱;紫外光谱;
- Free radical copolymerization 自由基共聚合反应
- N-vinylformamide(NVF) and acrylonitrile (AN) copolymers were prepared via free radical solution copolymerization in the presence of azodiisobutyronitrile(AIBN) as an initiator. 以功能单体N-乙烯基甲酰胺与丙烯腈共聚,制备可转化为对重金属离子具有吸附能力的螯合物。
- A free radical is a molecular fragment having an unpaired electron. 自由基是一种具有未配对电子的分子碎体。
- N-vinylformamide (NVF) and acrylonitrile (AN) copolymers were prepared via free radical solution copolymerization in the presence of azodiisobutyronitrile (AIBN) as an initiator. 摘要以功能单体N-乙烯基甲酰胺与丙烯腈共聚，制备可转化为对重金属离子具有吸附能力的螯合物。
- The novel super absorbent resin was prepared through free radical grafting copolymerization by using the sodium carboxymethylcellulose, acrylic acid, acrylamide. 以羧甲基纤维素钠、丙烯酸、丙烯酰胺为原料,通过自由基接枝聚合制备了高吸水树脂。
- This reaction has been classified as a free radical chain process. 这种反应是按自由基连锁反应的历程进行分类的。
- Glutathione peroxidase( GSH-Px) acts as a free radical scavenger. 谷胱甘肽过氧化物酶是生物机体内的自由基清除剂。
- Proanthocyanidin is a effective natural free radical scavenger. 原花青素是一种天然有效的自由基清除剂。
- Abnormality of free radical production will lead many diseases. 自由基产生异常,将导致诸多疾病过程。
- OH Lilium Bromopyrogallol red Scavenging effect Free radical ? 百合 溴邻苯三酚红 清除作用 ?
- Vinyl ethers can cure by both cationic and free radical mechanisms. 乙烯醚可以都阳离子和游离基反应固化。
- Firstly,the reactivity ratios of radical copolymerization are determined by intercept-slope method, YBR method, JJ method (linear intersect), TM method (non-linear least squares) and microcomputer dynamic search method using microcomputer. 第一方面：利用计算机，通过截距斜率法、YBR法、JJ法(直线交叉法)、TM法(非线性最小二乘法)和动态搜索法测算共聚体系竞聚率，其中TM法和动态搜索法获得比较精确的竞聚率结果。
