The preparation and characterization of SBR/PS core-shell particles by gamma irradiation

被引：2
作者：
Li, DS
Peng, J
Zhang, XH
Qiao, JL
Li, JQ
Wei, GS [1 ]
机构：
[1] Peking Univ, Coll Chem, Dept Appl Chem, Beijing 100871, Peoples R China
[2] Beijing Res Inst Chem Ind, SINOPEC, Beijing 100013, Peoples R China
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 2005年 / 23卷 / 03期
关键词：
core-shell particles; gamma induced grafting polymerization; SBR;
D O I：
10.1142/S0256767905000370
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A kind of core(SBR)-shell(PS) particles was synthesized by using SBR latex and grafting with St under gamma irradiation. The influences of absorbed dose and dose rate on the grafting yield of PS on SBR seed latex have been investigated. Results show there was a transition layer which contained the SBR/PS graft copolymer between the SBR core and PS shell. Dynamic laser scattering (DLS) and differential scanning calorimetry (DSC) results confirm the existence of grafted polystyrene, and transmission electron microscope (TEM) observation verifies the core-shell structure of SBR-g-PS latex. Such SBR/PS core-shell latex could be processed easily to ultrafine rubber powders by using spray drying and expected to be used as an impact modifier for PS.
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页码：261 / 264
页数：4
相关论文
共 19 条
[1]  
ASHIDA T, 1993, Patent No. 0565391
[2]   Nonionic reactive surfactants. Part 2. Core-shell latexes from emulsion polymerization [J].
Dufour, MG ;
Guyot, A .
COLLOID AND POLYMER SCIENCE, 2003, 281 (02) :105-112
[3]   Modelling secondary particle formation in emulsion polymerisation: application to making core-shell morphologies [J].
Ferguson, CJ ;
Russell, GT ;
Gilbert, RG .
POLYMER, 2002, 43 (17) :4557-4570
[4]   Influence of core-shell structured particles on the impact resistance of poly(vinyl chloride) [J].
Guo, TY ;
Tang, GL ;
Hao, GJ ;
Wang, SF ;
Song, MD ;
Zhang, BH .
POLYMERS FOR ADVANCED TECHNOLOGIES, 2003, 14 (3-5) :232-238
[5]   Toughening modification of PS with n-BA/MMA/styrene core-shell structured copolymer from emulsifier-free emulsion polymerization [J].
Guo, TY ;
Tang, GL ;
Hao, GJ ;
Song, MD ;
Zhang, BH .
JOURNAL OF APPLIED POLYMER SCIENCE, 2003, 90 (05) :1290-1297
[6]  
HAHN FJ, 1962, Patent No. 3256233
[7]   Modification of polymers by radiation graft polymerization (state of the art and trends) [J].
Kabanov, VY ;
Kudryavtsev, VN .
HIGH ENERGY CHEMISTRY, 2003, 37 (01) :1-5
[8]  
LI XQ, 1999, POLYM MAT SCI ENG, V15, P129
[9]  
Lin KF, 1998, J APPL POLYM SCI, V69, P2069, DOI 10.1002/(SICI)1097-4628(19980906)69:10<2069::AID-APP18>3.0.CO
[10]  
2-X
12