Effect of Solvents on Gamma Radiation-Induced Graft Copolymerization of Vinyl Acetate onto Poly(3-hydroxybutyrate)

被引：10

作者：

Gonzalez, Maykel ^{[1
]}

Ortiz, Pedro ^{[2
]}

Rapado, Manuel ^{[3
]}

Galego, Norma ^{[1
,2
]}

机构：

[1] Univ La Habana, Lab Polimeros, Inst Ciencias & Tecnol Mat IMRE, Havana 10400, Cuba

[2] Univ La Habana, Dept Quim Fis, Fac Quim, Havana 10400, Cuba

[3] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2009年 / 14卷 / 03期

关键词：

Copolymers; Gamma radiation; Graft copolymer; Graft polymer; Irradiation procedures; Poly (3-hydroxybutyrate); Radiation doses; Radiation-induced; Solvents; Thermogravimetric analysis; Vinyl acetate; Vinyl alcohol; ELECTRON-SPIN-RESONANCE; ACRYLIC-ACID; POLYMERIZATION; BIODEGRADABILITY; FILM;

D O I：

10.1080/10236660802663480

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of different solvents on the radiation-induced graft copolymerization of vinyl acetate onto poly(3-hydroxybutyrate) was studied. Structures of copolymers were determined with the techniques of thermogravimetric analysis and differential scanning calorimetry. From the thermal analysis results, it was found that the more favorable solvent to be used in the graft reaction is hexane. However, a much higher grafting degree can be achieved in bulk. The thermodynamic parameter obtained varied, showing that the enthalpy of melting and crystallization temperature of graft copolymers decreased with increasing grafting degree, which implies changes in the crystallization behavior and decrease in the material cristallinity. Further hydrolysis of the higher grafting degree graft copolymer was also studied.

引用

页码：231 / 245

页数：15

共 20 条

[1] Radiation-induced graft polymerization of styrene onto poly(3-hydroxybutyrate) and its copolymer with 3-hydroxyvalerate [J].

Bahari, K ;

Mitomo, H ;

Enjoji, T ;

Hasegawa, S ;

Yoshii, F ;

Makuuchi, K .

ANGEWANDTE MAKROMOLEKULARE CHEMIE, 1997, 250 :31-44

[2] AN ELECTRON-SPIN-RESONANCE STUDY OF THE RADIATION-CHEMISTRY OF POLY(HYDROXYBUTYRATE) [J].

CARSWELLPOMERANTZ, T ;

HILL, DJT ;

ODONNELL, JH ;

POMERY, PJ .

RADIATION PHYSICS AND CHEMISTRY, 1995, 45 (05) :737-744

[3] Synthesis and characterization of maleated poly(3-hydroxybutyrate) [J].

Chen, C ;

Peng, SW ;

Fei, B ;

Zhuang, YG ;

Dong, LS ;

Feng, ZL ;

Chen, S ;

Xia, HM .

JOURNAL OF APPLIED POLYMER SCIENCE, 2003, 88 (03) :659-668

[4] Nonisothermal crystallization and melting behavior of poly(3-hydroxybutyrate) and maleated poly(3-hydroxybutyrate) [J].

Chen, C ;

Fei, B ;

Peng, SW ;

Zhuang, YG ;

Dong, LS ;

Feng, ZL .

EUROPEAN POLYMER JOURNAL, 2002, 38 (08) :1663-1670

[5]

DWORJANYN PA, 1992, PROGR POLYM PROCESSI, V3, P93

[6]

ElNesr EM, 1997, J APPL POLYM SCI, V63, P377, DOI 10.1002/(SICI)1097-4628(19970118)63:3<377::AID-APP14>3.0.CO

[7]

2-Y

[8]

GONZALEZ M, 2007, NUCLEUS, V42, P40

[9]

GONZALEZ M, 2008, NUCLEUS, V42, P3

[10] Radiation-induced graft copolymerization of vinyl acetate onto poly(3-hydroxybutyrate):: Synthesis and characterization [J].

Gonzalez, Maykel ;

Ortiz, Pedro ;

Rapado, Manuel ;

Galego, Norma .

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION, 2008, 13 (05) :376-393

← 1 2 →