Constituent plexiglas PMMA | SSHADE

Constituent

Name: plexiglas PMMA
Official name: Poly(methyl methacrylate)

Family: molecular solid
Class: non polar molecular solid
Compound type: homopolymer

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0
Mole fraction: 1.0

Monomer arrangement: unknown
Terminal function: H
Monomer number: n
Molar mass: 100.115 $g/mol$
Polymolecularity index: 1

Chemical composition

Formula: $H-(-CH_2CH_3C-COOCH_3)_n-H$
Chemical formula: (H2)(C5O2H8)n
Elemental formula: (C)10-n (H)18-n (O)4-n
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$\bullet[(CH_2CH_3C(COOCH_3))]\bullet$	methyl methacrylate mer	molecule	2 - n		1	constituent mer	main
	$H$	Hydrogen	element	2		1	constituent element	main

Composition comments: The formula is n repeting units + 2 $-H$ terminal functions

Chemical functions and bonds

Chemical functions

	Function	Number	Relevance
	$R-C(=O)-O-R$	1	main

Chemical bonds

	Bond	Number	Relevance
	$\geq C-C \leq$	n
	$\geq C-C \leq$	2	main
	$\eqslantgtr C-C\leq$	1	main
	$>C=O$	1	main
	$\eqslantgtr C-O-$	1	main
	$\geq C-O-$	1	main
	$\geq C-H$	8	main

Class: molecular solids with apolar molecules (01)
Type: with polyatomic organic apolar molecules (CnHm...) (01.06)

Phase type: unknown

Physical properties

Molar mass: 100.115 $g/mol$
Density: 1.17 - 1.20 $g/cm^3$

Optical properties

Refringence type: unknown
Refraction index $n_{\alpha}$: 1.4905 @ 589nm
Diaphaneity: transparent
Luster: vitreous