Characterization of polymers and copolymers containing blocked isocyanate and hydroxyl functions

Author

• Tharayil Easow Chacko, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

5-31-1982

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering and Chemistry

First Advisor

William H. Snyder

Second Advisor

George Y. Lei

Third Advisor

David S. Kristol

Abstract

Some low molecular weight polymers and copolymers including four MMA homopolymers , six MMA-HEMA (hydroxyethyl methacrylate) copolymers and a 17.5 K standard polystyrene sample were characterized as to weight average molecular weight ( M_w ) , and second virial coefficient ( A₂ ) by linear regression analyses of light scattering data obtained in chloroform at room temperature. Ten higher molecular weight polymers and copolymers containing blocked isocyanate functions were also examined by light scattering utilizing standard Zimm plots . Gel permeation chromatography ( GPC ) , vapor prossure osmometry ( VP0 ) , membrane osmometry ( MO ) ,and intrinsic viscosity measurements were also carried out on some of the polymers to determine their molecular parameters.

Recommended Citation

Chacko, Tharayil Easow, "Characterization of polymers and copolymers containing blocked isocyanate and hydroxyl functions" (1982). Theses. 3657.
https://digitalcommons.njit.edu/theses/3657