Low Temperature, In Situ Polymerization of Vinyl Acetate in Silica Containing Emulsion Gels

被引：0

作者：

Zavahir, Nazreen ^{[1
]}

Zhang, Tan ^{[2
,3
]}

Blum, Frank D. ^{[4
]}

Maddumaarachchi, Madhubhashini ^{[5
]}

机构：

[1] Univ Sri Jayewardenepura, Dept Chem, Nugegoda, Sri Lanka

[2] Duke Kunshan Univ, Div Nat & Appl Sci, Kunshan 215316, Jiangsu, Peoples R China

[3] Duke Kunshan Univ, Environm Res Ctr, Kunshan 215316, Jiangsu, Peoples R China

[4] Oklahoma State Univ, Dept Chem, Stillwater, OK 74078 USA

[5] Univ Sri Jayewardenepura, Dept Polymer Sci, Nugegoda, Sri Lanka

来源：

ADVANCES IN POLYMER TECHNOLOGY | 2023年 / 2023卷

关键词：

FREE-RADICAL POLYMERIZATION; METHYL-METHACRYLATE; POLY(VINYL ACETATE); THERMAL-DECOMPOSITION; DEGRADATION; STYRENE; BULK; KINETICS;

D O I：

10.1155/2023/7849372

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Vinyl acetate (VAc) was polymerized to about 90% conversion in 9 h at 40? from the colloidal microstructure of the VAc/fumed silica/cetyltrimethylammonium bromide (CTAB) system. The glass transition (T-g) of poly(vinyl acetate) (PVAc) polymerized in these emulsion gels with silica was higher (T-g=41?) than those of PVAc made from bulk polymerization at 60? (T-g=31?) and the weight average molar mass (M-w) was also larger (M-w about 300 kg/mol) than those from bulk polymerization (M-w=125 kg/mol). Increased M-w, T-g, and lowered processing temperature for these composites could facilitate new applications for PVAc.

引用

页数：10

共 26 条

[1] DIFFUSION-CONTROLLED TERMINATION IN FREE RADICAL COPOLYMERIZATION
ATHERTON, JN
NORTH, AM
[J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1962, 58 (478): : 2049 - &
[2] REFRACTIVE-INDEX OF SOLUTIONS CONTAINING POLY(VINYL ACETATE) AND POLY(METHYL METHACRYLATE)
BAHR, D
PINTO, JC
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1991, 42 (10) : 2795 - 2809
[3] Dynamics of poly(vinyl acetate) in bulk and on silica
Blum, FD
Xu, G
Liang, MH
Wade, CG
[J]. MACROMOLECULES, 1996, 29 (27) : 8740 - 8745
[4] INITIATOR EFFICIENCIES IN 2,2'-AZOISOBUTYRONITRILE-INITIATED FREE-RADICAL POLYMERIZATIONS OF STYRENE
BUBACK, M
HUCKESTEIN, B
KUCHTA, FD
RUSSELL, GT
SCHMID, E
[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS, 1994, 195 (06) : 2117 - 2140
[5] PMMA/zinc oxide nanocomposites prepared by in-situ bulk polymerization
Demir, Mustafa M.
Memesa, Mine
Castignolles, Patrice
Wegner, Gerhard
[J]. MACROMOLECULAR RAPID COMMUNICATIONS, 2006, 27 (10) : 763 - 770
[6] THE THERMAL DEGRADATION OF POLYVINYL ACETATE .1. PRODUCTS AND REACTION MECHANISM AT LOW TEMPERATURES
GRASSIE, N
[J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1952, 48 (04): : 379 - 387
[7] Viscoelastic properties and thermal degradation kinetics of silica/PMMA nanocomposites
Hu, YH
Chen, CY
Wang, CC
[J]. POLYMER DEGRADATION AND STABILITY, 2004, 84 (03) : 545 - 553
[8] Low-temperature controlled free-radical polymerization of vinyl monomers in the presence of a novel cyclic dixanthate under γ-ray irradiation
Hua, Daoben
Ge, Xueping
Tang, Jing
Zhu, Xiulin
Bai, Ruke
Pan, Caiyuan
[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (14) : 2847 - 2854
[9] Off-line monitoring of butyl acrylate, methyl methacrylate and vinyl acetate homo- and copolymerizations in toluene using ATR-FTIR spectroscopy
Hua, H
Dubé, MA
[J]. POLYMER, 2001, 42 (14) : 6009 - 6018
[10] Study on thermal decomposition characteristics of AIBN
Li, Xin-Rui
Wang, Xin-Long
Koseki, Hiroshi
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2008, 159 (01) : 13 - 18

← 1 2 3 →